A centenarian is a person who has reached the age of 100 years. Because life expectancies worldwide are below 100, the term is invariably associated with longevity . The United Nations estimated that there were 316,600 living centenarians worldwide in 2012, and 573,000 in 2020, almost quadruple the 2000 estimate of 151,000.
163-554: As world population and life expectancy continue to increase, the number of centenarians is expected to increase substantially in the 21st century. According to the Office of National Statistics in the United Kingdom, one-third of babies born in the country in 2013 are expected to live to 100. According to a 1998 United Nations demographic survey, Japan is expected to have 272,000 centenarians by 2050; other sources suggest that
326-1096: A president of the United States in Congress Assembled to preside over its deliberation as a neutral discussion moderator . Unrelated to and quite dissimilar from the later office of president of the United States, it was a largely ceremonial position without much influence. In 1783, the Treaty of Paris secured independence for each of the former colonies. With peace at hand, the states each turned toward their own internal affairs. By 1786, Americans found their continental borders besieged and weak and their respective economies in crises as neighboring states agitated trade rivalries with one another. They witnessed their hard currency pouring into foreign markets to pay for imports, their Mediterranean commerce preyed upon by North African pirates , and their foreign-financed Revolutionary War debts unpaid and accruing interest. Civil and political unrest loomed. Events such as
489-511: A "disruptive" erosion of his ability to govern. Ford failed to win election to a full term and his successor, Jimmy Carter , failed to win re-election. Ronald Reagan , who had been an actor before beginning his political career, used his talent as a communicator to help reshape the American agenda away from New Deal policies toward more conservative ideology. With the Cold War ending and
652-403: A 70 percent probability the world population will not stabilize this century. Population, which had sort of fallen off the world's agenda, remains a very important issue." The table below shows historical and predicted regional population figures in millions. The availability of historical population figures varies by region. The following table gives estimates, in millions, of population in
815-463: A basic model from which to make broad population conjectures. The idea became taboo following the United Nations' 1994 International Conference on Population and Development , where framing human population growth as negatively impacting the natural environment became regarded as "anti-human". President of the United States [REDACTED] [REDACTED] The president of
978-723: A birthday congratulatory letter from the Supreme Leader of the DPRK . On 6 July 2022, Pak Hak Sil, a centenarian living in Koup-ri of Kangnam County , Pyongyang , received a birthday letter sent by Kim Jong Un . In the Philippines, Republic Act No. 10868 better known as the Centenarians Act of 2016 mandates that all living Filipinos residing in the Philippines or overseas receive a birthday congratulatory letter from
1141-573: A delegate for Virginia. When the Constitutional Convention convened in May 1787, the 12 state delegations in attendance ( Rhode Island did not send delegates) brought with them an accumulated experience over a diverse set of institutional arrangements between legislative and executive branches from within their respective state governments. Most states maintained a weak executive without veto or appointment powers, elected annually by
1304-463: A dominant figure in American politics. Historians believe Roosevelt permanently changed the political system by strengthening the presidency, with some key accomplishments including breaking up trusts, conservationism, labor reforms, making personal character as important as the issues, and hand-picking his successor, William Howard Taft . The following decade, Woodrow Wilson led the nation to victory during World War I , although Wilson's proposal for
1467-545: A good deal of foreign and domestic policy without aid, interference or consent from Congress". Bill Wilson , board member of Americans for Limited Government , opined that the expanded presidency was "the greatest threat ever to individual freedom and democratic rule". Article I, Section 1 of the Constitution vests all lawmaking power in Congress's hands, and Article 1, Section 6, Clause 2 prevents
1630-433: A growth rate by then of zero. Other demographers predict that the human population will begin to decline in the second half of the 21st century. The total number of births globally is currently (2015–2020) 140 million/year, which is projected to peak during the period 2040–2045 at 141 million/year and then decline slowly to 126 million/year by 2100. The total number of deaths is currently 57 million/year and
1793-533: A lack of accurate records. Haub (1995) estimates that around 40% of those who have ever lived did not survive beyond their first birthday. Haub also stated that " life expectancy at birth probably averaged only about ten years for most of human history", which is not to be mistaken for the life expectancy after reaching adulthood. The latter equally depended on period, location and social standing, but calculations identify averages from roughly 30 years upward. The National Institute of Corrections estimates that
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#17327767345911956-412: A large scale. Asia is the most populous continent, with its 4.64 billion inhabitants accounting for 60% of the world population. The world's two most populated countries, India and China, together constitute about 36% of the world's population. Africa is the second most populated continent, with around 1.34 billion people, or 17% of the world's population. Europe's 747 million people make up 10% of
2119-460: A letter on the 100th birthday and on every birthday beginning with the 105th. Swedish centenarians receive a telegram from the king and queen of Sweden . In Commonwealth realms including the United Kingdom, Canada, Australia and New Zealand centenarians can receive congratulations card greetings from the monarch King Charles III on their 100th birthday. In the UK, greeting cards are also sent by
2282-424: A low of 7.4 billion to a high of more than 10.6 billion. Projected figures vary depending on underlying statistical assumptions and the variables used in projection calculations, especially the fertility and mortality variables. Long-range predictions to 2150 range from a population decline to 3.2 billion in the "low scenario", to "high scenarios" of 24.8 billion. One extreme scenario predicted
2445-499: A massive increase to 256 billion by 2150, assuming the global fertility rate remained at its 1995 level of 3.04 children per woman; however, by 2010 the global fertility rate had declined to 2.52. There is no estimation for the exact day or month the world's population surpassed one or two billion. The points at which it reached three and four billion were not officially noted, but the International Database of
2608-466: A month after taking office. Presidents often grant pardons shortly before leaving office, like when Bill Clinton pardoned Patty Hearst on his last day in office; this is often controversial . Two doctrines concerning executive power have developed that enable the president to exercise executive power with a degree of autonomy. The first is executive privilege , which allows the president to withhold from disclosure any communications made directly to
2771-636: A more important role. A preliminary study carried out in Poland showed that, in comparison with young healthy female adults, centenarians living in Upper Silesia had significantly higher red blood cell glutathione reductase and catalase activities, although serum levels of vitamin E were not significantly higher. Researchers in Denmark have also found that centenarians exhibit a high activity of glutathione reductase in red blood cells. In this study,
2934-970: A number of issues, including representation and voting, and the exact powers to be given the central government. Congress finished work on the Articles of Confederation to establish a perpetual union between the states in November 1777 and sent it to the states for ratification . Under the Articles, which took effect on March 1, 1781, the Congress of the Confederation was a central political authority without any legislative power. It could make its own resolutions, determinations, and regulations, but not any laws, and could not impose any taxes or enforce local commercial regulations upon its citizens. This institutional design reflected how Americans believed
3097-402: A population of over 139 million in 2020. In just one hundred years, the population of Brazil decupled (x10), from about 17 million in 1900, or about 1% of the world population in that year, to about 176 million in 2000, or almost 3% of the global population in the very early 21st century. Mexico's population grew from 13.6 million in 1900 to about 112 million in 2010. Between
3260-431: A presidential veto, it requires a two-thirds vote of both houses, which is usually very difficult to achieve except for widely supported bipartisan legislation. The framers of the Constitution feared that Congress would seek to increase its power and enable a "tyranny of the majority", so giving the indirectly elected president a veto was viewed as an important check on the legislative power. While George Washington believed
3423-454: A scientist, the astronomer Hipparchus of Nicaea ( c. 185 – c. 120 BC ), who, according to the doxographer, said that the philosopher Democritus of Abdera ( c. 470/460 – c. 370/360 BC ) lived 109 years. Other ancient accounts of Democritus agree that the philosopher lived at least 90 years. The case of Democritus differs from those of, for example, Epimenides of Crete (7th and 6th centuries BC), who
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#17327767345913586-438: A sexual harassment suit could proceed without delay, even against a sitting president. The 2019 Mueller report on Russian interference in the 2016 presidential election detailed evidence of possible obstruction of justice , but investigators declined to refer Donald Trump for prosecution based on a United States Department of Justice policy against indicting an incumbent president. The report noted that impeachment by Congress
3749-612: A sitting American president led troops in the field", though James Madison briefly took control of artillery units in defense of Washington, D.C. , during the War of 1812 . Abraham Lincoln was deeply involved in overall strategy and in day-to-day operations during the American Civil War , 1861–1865; historians have given Lincoln high praise for his strategic sense and his ability to select and encourage commanders such as Ulysses S. Grant . The present-day operational command of
3912-550: A state visit by a foreign head of state, the president typically hosts a State Arrival Ceremony held on the South Lawn , a custom begun by John F. Kennedy in 1961. This is followed by a state dinner given by the president which is held in the State Dining Room later in the evening. As a national leader, the president also fulfills many less formal ceremonial duties. For example, William Howard Taft started
4075-454: A steady decline in population growth rate; the global population is expected to reach between 8.3 and 10.9 billion by 2050. 2003 UN Population Division population projections for the year 2150 range between 3.2 and 24.8 billion. One of many independent mathematical models supports the lower estimate, while a 2014 estimate forecasts between 9.3 and 12.6 billion in 2100, and continued growth thereafter. The 2019 Revision of
4238-402: A thousand centenarians. Even rarer is a person who has lived to 115 . There are 75 people in recorded history who have indisputably reached 115. Only three of the people who have reached 115 are men. Tomiko Itooka , Inah Canabarro Lucas , Ethel Caterham and Okagi Hayashi are the only verified people currently alive who have reached the 115 years milestone. Jeanne Calment from France
4401-507: A thousand years. In Italy, "A hundred of these days!" ( cento di questi giorni ) is an augury for birthdays, to live to celebrate 100 more birthdays. Some Italians say "A cent'anni!", which means "(up) To a hundred years", in that they wish that they could all live happily for a hundred years. In Greece, wishing someone Happy Birthday ends with the expression να τα εκατοστήσεις ( na ta ekatostisis ), which can be loosely translated as "may you make it one hundred birthdays". In Sri Lanka, it
4564-525: A €2,540 "Centenarians' Bounty" and a letter from the president of Ireland , even if they are resident abroad . Irish people celebrating their 101st birthday may also receive a special silver minted coin with a quote by a famous Irish writer or poet. Centenarians born in Italy receive a letter of congratulations from the president of Italy . In the Netherlands, the monarch and their commissioner sends
4727-559: Is a common blessing. In Poland, Sto lat , a wish to live a hundred years, is a traditional form of praise and good wishes, and the song "sto lat, sto lat" is sung on the occasion of the birthday celebrations—arguably, it is the most popular song in Poland and among Poles around the globe. According to legends, Sages from ancient India lived and meditated for tens of thousands of years while Great Kings ruled their kingdoms for thousands of years. Chinese emperors were hailed to live ten thousand years , while empresses were hailed to live
4890-470: Is a custom to bless as "you may live 220 instead of 120". In many countries, people receive a gift or congratulations from federal/state institutions on their 100th birthday. As of 2019, there were an estimated 72,000 centenarians living in the U.S.; the 2020 census officially counted 80,139, and the 2010 census had 53,364. However, the U.S. Census Bureau claimed in 1999 that as many as a third of people stating their age as over 100 might be exaggerating. In
5053-400: Is currently (2015–20) 140 million/year, is projected to peak during the period 2040–45 at 141 million/year and thereafter decline slowly to 126 million/year by 2100. The total number of deaths is currently 57 million/year and is projected to grow steadily to 121 million/year by 2100. 2012 United Nations projections show a continued increase in population in the near future with
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5216-428: Is given by the statistician Jorgen Randers, who argues that traditional projections insufficiently take into account the downward impact of global urbanization on fertility. Randers' "most likely scenario" reveals a peak in the world population in the early 2040s at about 8.1 billion people, followed by decline. Adrian Raftery, a University of Washington professor of statistics and of sociology, states that "there's
5379-413: Is head of the executive branch of the federal government and is constitutionally obligated to "take care that the laws be faithfully executed". The executive branch has over four million employees, including the military. Presidents make political appointments . An incoming president may make up to 4,000 upon taking office, 1200 of which must be confirmed by the U.S. Senate . Ambassadors , members of
5542-579: Is now presented by his successor Al Roker . Japanese centenarians receive a silver cup and a certificate from the prime minister of Japan upon the Respect for the Aged Day following their 100th birthday, honouring them for their longevity and prosperity in their lives. In Madhya Pradesh , India , the award known as Shatayu Samman is given out to people who live at least 100 years to promote awareness of good health. North Korean centenarians receive
5705-421: Is projected to decline further in the 21st century. The global population is still increasing, but there is significant uncertainty about its long-term trajectory due to changing fertility and mortality rates. The UN Department of Economics and Social Affairs projects between 9 and 10 billion people by 2050 and gives an 80% confidence interval of 10–12 billion by the end of the 21st century, with
5868-503: Is projected to grow steadily to 121 million/year by 2100. The median age of human beings as of 2020 is 31 years. Estimates of world population by their nature are an aspect of modernity , possible only since the Age of Discovery . Early estimates for the population of the world date to the 17th century: William Petty , in 1682, estimated the world population at 320 million (current estimates ranging close to twice this number); by
6031-426: Is said by Bernold of Constance to have lived past 100 years ( iam maior centenario ). Research in Italy suggests that healthy centenarians have high levels of both vitamin A and vitamin E and that this seems to be important in causing their extreme longevity. Other research contradicts this, however, and has found that this theory does not apply to centenarians from Sardinia , for whom other factors probably play
6194-526: Is said to have lived an implausible 154, 157, or 290 years, depending on the source. Other ancient Greek philosophers thought to have lived beyond the age of 90 include Xenophanes of Colophon ( c. 570/565 – c. 475/470BC ), Pyrrho of Ellis ( c. 360 – c. 270 BC ), and Eratosthenes of Cirene ( c. 285 – c. 190 BC ). Also, the Greek rhetorician Isocrates of Athens (436-338 BC) lived 97/98 years and
6357-508: Is said to have reigned for 94 years, but alternative readings cite a reign of just 64 years. Adad-guppi , mother of the last king of the Neo-Babylonian Empire Nabonidus apparently lived from c. 648 -544 BC (c. 104 years) according to inscriptions on funeral steles . Diogenes Laërtius ( c. AD 250 ) gives one of the earliest references regarding the plausible centenarian longevity given by
6520-421: Is significantly shaped by the outcome of presidential elections, with presidents taking an active role in promoting their policy priorities to members of Congress who are often electorally dependent on the president. In recent decades, presidents have also made increasing use of executive orders , agency regulations, and judicial appointments to shape domestic policy. The president is elected indirectly through
6683-479: Is that as agriculture advances in creating more food, the population consequently increases—the Neolithic Revolution and Green Revolution often specifically provided as examples of such agricultural breakthroughs. Furthermore, certain scientific studies do lend evidence to food availability in particular being the dominant factor within a more recent timeframe. Other studies take it as
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6846-721: Is the 46th and current president, having assumed office on January 20, 2021. President-elect Donald Trump is scheduled to be inaugurated as the 47th president on January 20, 2025. During the American Revolutionary War , the Thirteen Colonies , represented by the Second Continental Congress in Philadelphia , declared themselves to be independent sovereign states and no longer under British rule. The affirmation
7009-642: Is the fact that average global birth rates , as well as mortality rates , are declining rapidly, as the nations of the world progress through the stages of the demographic transition, but both vary greatly between developed countries (where birth rates and mortality rates are often low) and developing countries (where birth and mortality rates typically remain high). Different ethnicities also display varying birth rates. Birth rate and mortality rates can change rapidly due to disease epidemics , wars and other mass catastrophes, or advances in medicine and public health . The UN's first report in 1951 showed that during
7172-465: Is the largest language family by number of speakers. Standard Arabic is a language with no native speakers, but the total number of speakers is estimated at 274 million people. The largest religious categories in the world as of 2020 are estimated as follows: Christianity (31%), Islam (25%), Unaffiliated (16%) and Hinduism (15%). Six of the Earth's seven continents are permanently inhabited on
7335-558: Is the only age-verified person in human history to have reached the age of 120 years. An aspect of blessing in many cultures is to offer a wish that the recipient lives to 100 years old. Among Hindus in India, where touching feet of elders and respected is a tradition, people who touch the feet of elders are often blessed with "May you live a hundred years". In Sweden, the traditional birthday song states, May he/she live for one hundred years . In Judaism , May you live to be 120 years old
7498-571: Is to be commander-in-chief of the army and navy of the United States. ... It would amount to nothing more than the supreme command and direction of the military and naval forces ... while that [the power] of the British king extends to the DECLARING of war and to the RAISING and REGULATING of fleets and armies, all [of] which ... would appertain to the legislature. [Emphasis in
7661-564: Is uncertain. The Population Division of the United Nations estimated that there were 23,000 in 1950, 110,000 in 1990, 150,000 in 1995, 209,000 in 2000, 324,000 in 2005, 455,000 in 2009, and 935,000 in 2024. These older estimates, however, did not take into account downward adjustments of national estimates made by several countries such as the United States. The UN estimated in 2012, as a result of these adjustments, that there were only 316,600 centenarians worldwide. The following table gives estimated centenarian populations by country, including both
7824-417: Is unlikely that there will be another doubling of the global population in the 21st century. The total number of humans who have ever lived is estimated to be approximately 100 billion . Such estimates can only be rough approximations, as even modern population estimates are subject to uncertainty of around 3% to 5%. Kapitsa (1996) cites estimates ranging between 80 and 150 billion. The PRB puts
7987-593: The Black Death pandemic ; it took 200 years for European population figures to recover. The population of China decreased from 123 million in 1200 to 65 million in 1393, presumably from a combination of Mongol invasions, famine, and plague. Starting in AD 2, the Han dynasty of ancient China kept consistent family registers to properly assess the poll taxes and labor service duties of each household. In that year,
8150-535: The Cabinet , and various officers , are among the positions filled by presidential appointment with Senate confirmation. The power of a president to fire executive officials has long been a contentious political issue. Generally, a president may remove executive officials at will. However, Congress can curtail and constrain a president's authority to fire commissioners of independent regulatory agencies and certain inferior executive officers by statute . To manage
8313-573: The Electoral College to a four-year term, along with the vice president . Under the Twenty-second Amendment , ratified in 1951, no person who has been elected to two presidential terms may be elected to a third. In addition, nine vice presidents have become president by virtue of a president's intra-term death or resignation . In all, 45 individuals have served 46 presidencies spanning 58 four-year terms. Joe Biden
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#17327767345918476-763: The League of Nations was rejected by the Senate. Warren Harding , while popular in office, would see his legacy tarnished by scandals, especially Teapot Dome , and Herbert Hoover quickly became very unpopular after failing to alleviate the Great Depression . The ascendancy of Franklin D. Roosevelt in 1933 led further toward what historians now describe as the Imperial presidency . Backed by enormous Democratic majorities in Congress and public support for major change, Roosevelt's New Deal dramatically increased
8639-660: The Newburgh Conspiracy and Shays' Rebellion demonstrated that the Articles of Confederation were not working. Following the successful resolution of commercial and fishing disputes between Virginia and Maryland at the Mount Vernon Conference in 1785, Virginia called for a trade conference between all the states, set for September 1786 in Annapolis, Maryland , with an aim toward resolving further-reaching interstate commercial antagonisms. When
8802-542: The President of the Philippines and a ₱100,000 "Centenarian Gift" from the Department of Social Welfare and Development (DSWD). In Taiwan, people aged 100 or above receive a golden pendant necklace on Chong Yang Festival each year from the president and Ministry of Health and Welfare . German centenarians receive a letter of congratulations from the president of Germany . In Ireland, centenarians can receive
8965-559: The Supreme Court of the United States . However, these nominations require Senate confirmation before they may take office. Securing Senate approval can provide a major obstacle for presidents who wish to orient the federal judiciary toward a particular ideological stance. When nominating judges to U.S. district courts , presidents often respect the long-standing tradition of senatorial courtesy . Presidents may also grant pardons and reprieves . Gerald Ford pardoned Richard Nixon
9128-588: The U.S. Constitution emerged. As the nation's first president, George Washington established many norms that would come to define the office. His decision to retire after two terms helped address fears that the nation would devolve into monarchy, and established a precedent that would not be broken until 1940 and would eventually be made permanent by the Twenty-Second Amendment . By the end of his presidency, political parties had developed, with John Adams defeating Thomas Jefferson in 1796,
9291-610: The Watergate scandal , Congress enacted a series of reforms intended to reassert itself. These included the War Powers Resolution , enacted over Nixon's veto in 1973, and the Congressional Budget and Impoundment Control Act of 1974 that sought to strengthen congressional fiscal powers. By 1976, Gerald Ford conceded that "the historic pendulum" had swung toward Congress, raising the possibility of
9454-636: The Watergate scandal , the Supreme Court ruled in United States v. Nixon , 418 U.S. 683 (1974), that executive privilege did not apply in cases where a president was attempting to avoid criminal prosecution. When Bill Clinton attempted to use executive privilege regarding the Lewinsky scandal , the Supreme Court ruled in Clinton v. Jones , 520 U.S. 681 (1997), that
9617-490: The convention failed for lack of attendance due to suspicions among most of the other states, Alexander Hamilton of New York led the Annapolis delegates in a call for a convention to offer revisions to the Articles, to be held the next spring in Philadelphia . Prospects for the next convention appeared bleak until James Madison and Edmund Randolph succeeded in securing George Washington 's attendance to Philadelphia as
9780-703: The developing world have experienced extremely rapid population growth since the early 20th century, due to economic development and improvements in public health. China's population rose from approximately 430 million in 1850 to 580 million in 1953, and now stands at over 1.3 billion. The population of the Indian subcontinent , which was about 125 million in 1750, increased to 389 million in 1941; today, India, Pakistan and Bangladesh are collectively home to about 1.63 billion people. Java , an island in Indonesia , had about 5 million inhabitants in 1815; it had
9943-602: The 16th century, maize and cassava have similarly replaced traditional African crops as the most important staple food crops grown on the continent. The pre-Columbian population of the Americas is uncertain; historian David Henige called it "the most unanswerable question in the world." By the end of the 20th century, scholarly consensus favored an estimate of roughly 55 million people, but numbers from various sources have ranged from 10 million to 100 million. Encounters between European explorers and populations in
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#173277673459110106-585: The 1830s and 1840s until debates over slavery began pulling the nation apart in the 1850s. Abraham Lincoln 's leadership during the Civil War has led historians to regard him as one of the nation's greatest presidents. The circumstances of the war and Republican domination of Congress made the office very powerful, and Lincoln's re-election in 1864 was the first time a president had been re-elected since Jackson in 1832. After Lincoln's assassination, his successor Andrew Johnson lost all political support and
10269-480: The 1920s and 2000s, Kenya's population grew from 2.9 million to 37 million. The UN estimated that the world population reached one billion for the first time in 1804. It was another 123 years before it reached two billion in 1927, but it took only 33 years to reach three billion in 1960. Thereafter, it took 14 years for the global population to reach four billion in 1974, 13 years to reach five billion in 1987, 12 years to reach six billion in 1999 and, according to
10432-616: The 20th century in Imperial Russia and the Soviet Union was marked by a succession of major wars, famines and other disasters which caused large-scale population losses (approximately 60 million excess deaths). After the collapse of the Soviet Union, Russia's population declined significantly – from 150 million in 1991 to 143 million in 2012 – but by 2013 this decline appeared to have halted. Many countries in
10595-670: The Armed Forces is delegated to the Department of Defense and is normally exercised through the secretary of defense . The chairman of the Joint Chiefs of Staff and the Combatant Commands assist with the operation as outlined in the presidentially approved Unified Command Plan (UCP). The president has the power to nominate federal judges , including members of the United States courts of appeals and
10758-477: The Constitution grants to the president as commander-in-chief has been the subject of much debate throughout history, with Congress at various times granting the president wide authority and at others attempting to restrict that authority. The framers of the Constitution took care to limit the president's powers regarding the military; Alexander Hamilton explained this in Federalist No. 69 : The President
10921-563: The European Agricultural and Industrial Revolutions , the life expectancy of children increased dramatically. The percentage of the children born in London who died before the age of five decreased from 74.5% in 1730–1749 to 31.8% in 1810–1829. Between 1700 and 1900, Europe's population increased from about 100 million to over 400 million. Altogether, the areas populated by people of European descent comprised 36% of
11084-455: The King to congratulate you on the attainment of your hundredth year, after a most useful life". The practice was formalised from 1917, under the reign of King George V , who also sent congratulations then sent by a telegram on the attainment of a diamond wedding anniversary (or jubilee) marking 60 years of marriage. During the reign of King George V, only 24 telegrams were sent; however, with
11247-474: The Supreme Court dismissed a case brought by a former Union spy. However, the privilege was not formally recognized by the U.S. Supreme Court until United States v. Reynolds 345 U.S. 1 (1953), where it was held to be a common law evidentiary privilege. Before the September 11 attacks , use of the privilege had been rare, but increasing in frequency. Since 2001, the government has asserted
11410-588: The UN estimates gives the "medium variant" population as; nearly 8.6 billion in 2030, about 9.7 billion in 2050 and about 10.9 billion in 2100. In December 2019, the German Foundation for World Population projected that the global population will reach 8 billion by 2023 as it increases by 156 every minute. In a modeled future projection by the Institute for Health Metrics and Evaluation ,
11573-532: The USCB asserted that this occurred in March 2012. Since 1951, the UN has issued multiple projections of future world population, based on different assumptions. From 2000 to 2005, the UN consistently revised these projections downward, until the 2006 revision, issued on 14 March 2007, revised the 2050 mid-range estimate upwards by 273 million. Complicating the UN's and others' attempts to project future populations
11736-469: The United Nations reported that the rate of population growth continues to decline due to the ongoing global demographic transition. If this trend continues, the rate of growth may diminish to zero by 2100, concurrent with a world population plateau of 10.9 billion. However, this is only one of many estimates published by the UN; in 2009, UN population projections for 2050 ranged between around 8 billion and 10.5 billion. An alternative scenario
11899-515: The United States ( POTUS ) is the head of state and head of government of the United States of America . The president directs the executive branch of the federal government and is the commander-in-chief of the United States Armed Forces . The power of the presidency has grown substantially since the first president, George Washington , took office in 1789. While presidential power has ebbed and flowed over time,
12062-568: The United States Census Bureau placed them in July 1959 and April 1974 respectively. The United Nations did determine, and commemorate, the "Day of 5 Billion" on 11 July 1987, and the "Day of 6 Billion" on 12 October 1999. The Population Division of the United Nations declared the " Day of Seven Billion " to be 31 October 2011. The United Nations marked the birth of the eight billionth person on 15 November 2022. As of 2020,
12225-527: The United States Census Bureau, 13 years to reach seven billion in March 2012. The United Nations, however, estimated that the world population reached seven billion in October 2011. According to the UN, the global population reached eight billion in November 2022, but because the growth rate is slowing, it will take another 15 years to reach around 9 billion by 2037 and 20 years to reach 10 billion by 2057. Alternative scenarios for 2050 range from
12388-483: The United States and other countries. Such agreements, upon receiving the advice and consent of the U.S. Senate (by a two-thirds majority vote), become binding with the force of federal law. While foreign affairs has always been a significant element of presidential responsibilities, advances in technology since the Constitution's adoption have increased presidential power. Where formerly ambassadors were vested with significant power to independently negotiate on behalf of
12551-630: The United States becoming the world's undisputed leading power, Bill Clinton , George W. Bush , and Barack Obama each served two terms as president. Meanwhile, Congress and the nation gradually became more politically polarized, especially following the 1994 mid-term elections that saw Republicans control the House for the first time in 40 years, and the rise of routine filibusters in the Senate in recent decades. Recent presidents have thus increasingly focused on executive orders , agency regulations, and judicial appointments to implement major policies, at
12714-400: The United States, centenarians may request a letter of congratulation from the president of the United States to mark their longevity. Jimmy Carter became the first former president to reach the age of 100 on October 1, 2024. Today also presents a segment honoring centenarians and older, sponsored by Smuckers . The tradition was created in 1983 by weather presenter Willard Scott , and
12877-423: The United States, presidents now routinely meet directly with leaders of foreign countries. One of the most important of executive powers is the president's role as commander-in-chief of the United States Armed Forces . The power to declare war is constitutionally vested in Congress, but the president has ultimate responsibility for the direction and disposition of the military. The exact degree of authority that
13040-538: The White House". Presidents have been criticized for making signing statements when signing congressional legislation about how they understand a bill or plan to execute it. This practice has been criticized by the American Bar Association as unconstitutional. Conservative commentator George Will wrote of an "increasingly swollen executive branch" and "the eclipse of Congress". To allow
13203-405: The aging population, this increased to 273 during 1952, when the longest-reigning monarch Queen Elizabeth II ascended the throne. The Queen also sent a telegram, and later a portrait-style greeting card with the notation, "I am so pleased to know that you are celebrating your one hundredth birthday. I send my congratulations and best wishes to you on such a special occasion." Each few years the card
13366-512: The carrying capacity → faster population growth → accelerating growth of the number of potential inventors → faster technological advance → hence, the faster growth of the Earth's carrying capacity for people, and so on. The transition from hyperbolic growth to slower rates of growth is related to the demographic transition. According to the Russian demographer Sergey Kapitsa , the world population grew between 67,000 BC and 1965 according to
13529-447: The centenarians having the best cognitive and physical functional capacity tended to have the highest activity of this enzyme . Other research has found that people whose parents became centenarians have an increased number of naïve B cells . It is well known that the children of parents who have a long life are also likely to reach a healthy age, but it is not known why, although the inherited genes are probably important. A variation in
13692-437: The combined eastern and western Roman Empire in the 4th century AD. The Plague of Justinian caused Europe's population to drop by around 50% between the 6th and 8th centuries AD. The population of Europe was more than 70 million in 1340. From 1340 to 1400, the world's population fell from an estimated 443 million to 350–375 million, with the Indian subcontinent suffering the most tremendous loss and Europe suffering
13855-552: The death of William Henry Harrison and subsequent poor relations between John Tyler and Congress led to further weakening of the office. Including Van Buren, in the 24 years between 1837 and 1861, six presidential terms would be filled by eight different men, with none serving two terms. The Senate played an important role during this period, with the Great Triumvirate of Henry Clay , Daniel Webster , and John C. Calhoun playing key roles in shaping national policy in
14018-457: The deposed British system of Crown and Parliament ought to have functioned with respect to the royal dominion : a superintending body for matters that concerned the entire empire. The states were out from under any monarchy and assigned some formerly royal prerogatives (e.g., making war, receiving ambassadors, etc.) to Congress; the remaining prerogatives were lodged within their own respective state governments. The members of Congress elected
14181-461: The executive branch may draft legislation and then ask senators or representatives to introduce these drafts into Congress. Additionally, the president may attempt to have Congress alter proposed legislation by threatening to veto that legislation unless requested changes are made. Many laws enacted by Congress do not address every possible detail, and either explicitly or implicitly delegate powers of implementation to an appropriate federal agency. As
14344-475: The expense of legislation and congressional power. Presidential elections in the 21st century have reflected this continuing polarization, with no candidate except Obama in 2008 winning by more than five percent of the popular vote and two, George W. Bush and Donald Trump , winning in the Electoral College while losing the popular vote. The nation's Founding Fathers expected the Congress , which
14507-569: The famous Greek tragedian Sophocles (497/496-406/405 BC) lived at least 90 years. Hosius of Córdoba , the man who convinced Constantine the Great to call the First Council of Nicaea , reportedly lived to age 102. A rare record of an ordinary person who lived to be a centenarian is the tombstone of Roman British legionary veteran Julius Valens, inscribed "VIXIT ANNIS C". In the medieval period, Albert Azzo II, Margrave of Milan (d. 1097)
14670-489: The far greater incidence of deaths in infancy or childhood. Those who lived past early childhood had a reasonable chance of living to a relatively old age. The assumption of what constitutes "old age", or being "elderly", at least, seems to have remained unchanged since antiquity, the line being generally drawn at either sixty or sixty-five years; Psalm 90 :10 in the Hebrew Bible appears to give seventy to eighty years as
14833-504: The federal government by issuing various types of directives , such as presidential proclamation and executive orders . When the president is lawfully exercising one of the constitutionally conferred presidential responsibilities, the scope of this power is broad. Even so, these directives are subject to judicial review by U.S. federal courts, which can find them to be unconstitutional. Congress can overturn an executive order through legislation. Article II, Section 3, Clause 4 requires
14996-483: The figure at 117 billion as of 2020, estimating that the current world population is 6.7% of all the humans who have ever lived. Haub (1995) prepared another figure, updated in 2002 and 2011; the 2011 figure was approximately 107 billion. Haub characterized this figure as an estimate that required "selecting population sizes for different points from antiquity to the present and applying assumed birth rates to each period". Robust population data only exist for
15159-539: The first U.S. president, firmly established military subordination under civilian authority . In 1794, Washington used his constitutional powers to assemble 12,000 militia to quell the Whiskey Rebellion , a conflict in Western Pennsylvania involving armed farmers and distillers who refused to pay an excise tax on spirits. According to historian Joseph Ellis , this was the "first and only time
15322-536: The first truly contested presidential election. After Jefferson defeated Adams in 1800, he and his fellow Virginians James Madison and James Monroe would each serve two terms, eventually dominating the nation's politics during the Era of Good Feelings until Adams' son John Quincy Adams won election in 1824 after the Democratic-Republican Party split. The election of Andrew Jackson in 1828
15485-418: The following formula: where According to linear interpolation and extrapolation of UNDESA population estimates , the world population has doubled, or will double, in the years listed in the tables below (with two different starting points). During the 2nd millennium , each doubling took roughly half as long as the previous doubling, fitting the hyperbolic growth model mentioned above. However, after 2024, it
15648-591: The gene FOXO3 A is known to have a positive effect on the life expectancy of humans, and is found much more often in people living to 100 and beyond – moreover, this appears to be true worldwide. Men and women who are 100 or older tend to have extroverted personalities, according to Thomas T. Perls, the director of the New England Centenarian Study at Boston University. Centenarians will often have many friends, strong ties to relatives and high self-esteem. In addition, some research suggests that
15811-460: The global fertility rate was estimated at 2.44 children per woman. In June 2012, British researchers calculated the total weight of Earth's human population as approximately 287 million tonnes (630 billion pounds), with the average person weighing around 62 kilograms (137 lb). The IMF estimated nominal 2021 gross world product at US$ 94.94 trillion, giving an annual global per capita figure of around US$ 12,290. Around 9.3% of
15974-587: The global sex ratio is approximately 1.01 males to 1 female. Approximately 24.7% of the global population is aged under 15, while 65.2% is aged 15–64 and 10.1% is aged 65 or over. The median age of the world's population is estimated to be 31 years in 2020, and is expected to rise to 37.9 years by 2050. According to the World Health Organization , the global average life expectancy is 73.3 years as of 2020, with women living an average of 75.9 years and men approximately 70.8 years. In 2010,
16137-490: The global population was projected to peak in 2064 at 9.73 billion people and decline to 8.79 billion in 2100. Some analysts have questioned the sustainability of further world population growth, highlighting the growing pressures on the environment , global food supplies, and energy resources. In 1975, Sebastian von Hoerner proposed a formula for population growth which represented hyperbolic growth with an infinite population in 2025. The hyperbolic growth of
16300-417: The government to act quickly in case of a major domestic or international crisis arising when Congress is not in session, the president is empowered by Article II, Section 3 of the Constitution to call a special session of one or both houses of Congress. Since John Adams first did so in 1797, the president has called the full Congress to convene for a special session on 27 occasions. Harry S. Truman
16463-661: The growing federal bureaucracy, presidents have gradually surrounded themselves with many layers of staff, who were eventually organized into the Executive Office of the President of the United States . Within the Executive Office, the president's innermost layer of aides, and their assistants, are located in the White House Office . The president also possesses the power to manage operations of
16626-474: The head of the executive branch, presidents control a vast array of agencies that can issue regulations with little oversight from Congress. In the 20th century, critics charged that too many legislative and budgetary powers that should have belonged to Congress had slid into the hands of presidents. One critic charged that presidents could appoint a "virtual army of 'czars'—each wholly unaccountable to Congress yet tasked with spearheading major policy efforts for
16789-539: The human population to reach a billion and only 218 years more to reach 8 billion. The human population has experienced continuous growth following the Great Famine of 1315–1317 and the end of the Black Death in 1350, when it was nearly 370,000,000. The highest global population growth rates , with increases of over 1.8% per year, occurred between 1955 and 1975, peaking at 2.1% between 1965 and 1970. The growth rate declined to 1.1% between 2015 and 2020 and
16952-670: The last two or three centuries. Until the late 18th century, few governments had ever performed an accurate census. In many early attempts, such as in Ancient Egypt and the Persian Empire , the focus was on counting merely a subset of the population for purposes of taxation or military service. Thus, there is a significant margin of error when estimating ancient global populations. Pre-modern infant mortality rates are another critical factor for such an estimate; these rates are very difficult to estimate for ancient times due to
17115-480: The late 18th century, estimates ranged close to one billion (consistent with current estimates). More refined estimates, broken down by continents, were published in the first half of the 19th century, at 600 million to 1 billion in the early 1800s and 800 million to 1 billion in the 1840s. It is difficult for estimates to be better than rough approximations, as even current population estimates are fraught with uncertainties from 3% to 5%. Estimates of
17278-419: The latest and the earliest known estimates, where available. A study which received a 2024 Ig Nobel Prize found these numbers are inflated by welfare and pension fraud and poor record-keeping, neither of which are uniform across jurisdictions. A supercentenarian , sometimes hyphenated as super-centenarian, is a person who has reached the age of 110 years. This age milestone is only achieved by about one in
17441-466: The leader of the nation with the largest economy by nominal GDP , the president possesses significant domestic and international hard and soft power . For much of the 20th century, especially during the Cold War , the U.S. president was often called "the leader of the free world". Article II of the Constitution establishes the executive branch of the federal government and vests executive power in
17604-422: The legislature to a single term only, sharing power with an executive council, and countered by a strong legislature. New York offered the greatest exception, having a strong, unitary governor with veto and appointment power elected to a three-year term, and eligible for reelection to an indefinite number of terms thereafter. It was through the closed-door negotiations at Philadelphia that the presidency framed in
17767-486: The lessening of the mortality rate in many countries by improved sanitation and medical advances , and a massive increase in agricultural productivity attributed to the Green Revolution . By 2000, there were approximately ten times as many people on Earth as there had been in 1700. However, this rapid growth did not last. During the period 2000–2005, the United Nations estimates that the world's population
17930-531: The life expectancy of those who live into adulthood. Reliable references to individuals in antiquity who lived past 100 years are quite rare, but they do exist. For instance, Cicero's wife Terentia was reported by Pliny the Elder to have lived from 98 BC to 6 AD, 103 years. Regnal dates of Bronze Age monarchs are notoriously unreliable; the sixth dynasty Egyptian ruler Pepi II is sometimes listed as having lived c. 2278 – c. 2184 BC , as he
18093-425: The long-standing trend on all inhabited continents, as well as in most individual states. During the 20th century, the global population saw its greatest increase in known history, rising from about 1.6 billion in 1900 to over 6 billion in 2000 as the whole world entered the early phases of what has come to be called the " demographic transition ". Some of the key factors contributing to this increase included
18256-525: The mechanism of repair after H 2 O 2 sublethal oxidative DNA damage and in their PARP capacity. PARP activity measured in the permeabilized mononuclear leukocyte blood cells of thirteen mammalian species correlated with maximum lifespan of the species. These findings suggest that PARP mediated DNA repair activity contributes to the longevity of centenarians, consistent with the DNA damage theory of aging . Many experts attribute Japan's high life expectancy to
18419-562: The monarch on every birthday beginning with the 105th. In Commonwealth realms in which the monarch does not ordinarily reside, honorees can also receive congratulations from the governor-general . In Canada, application must be made through the GGS official website. Similarly, in New Zealand, honorees must apply for greetings through the official government website. The traditions of British centenarians receiving greetings and congratulations
18582-534: The natural life expectancy of a person surviving into old age, "The years of our life are seventy, or even by reason of strength eighty". A survey of the lifespans of male individuals with entries in the Oxford Classical Dictionary (i.e., a sample pre-selected to include those who lived long enough to attain historical notability) found a median lifespan of 72 years, and a range of 32 to 107 years, for 128 individuals born before 100 BC (though
18745-451: The number could be closer to 1 million. The incidence of centenarians in Japan was one per 3,522 people in 2008. In Japan, the number of centenarians is highly skewed towards females. Japan in fiscal year 2016 had 57,525 female centenarians, while there were 8,167 males, a ratio of 7:1. The increase of centenarians was even more skewed at 11.6:1. The total number of centenarians in the world
18908-491: The number of people who have ever lived will rise to 121 billion by 2050, 4 billion more than their 2021 estimate. Individuals from a wide range of academic fields and political backgrounds have proposed that, like all other animal populations, any human population (and, by extension, the world population) predictably grows and shrinks according to available food supply, growing during an abundance of food and shrinking in times of scarcity. This idea may run counter to
19071-512: The office as a position of global leadership. His successors, Harry Truman and Dwight D. Eisenhower , each served two terms as the Cold War led the presidency to be viewed as the " leader of the free world ", while John F. Kennedy was a youthful and popular leader who benefited from the rise of television in the 1960s. After Lyndon B. Johnson lost popular support due to the Vietnam War and Richard Nixon 's presidency collapsed in
19234-570: The offspring of centenarians are more likely to age in better cardiovascular health than their peers. Lymphoblastoid cell lines established from blood samples of centenarians have significantly higher activity of the DNA repair protein PARP ( Poly ADP ribose polymerase ) than cell lines from younger (20 to 70 years old) individuals. The lymphocytic cells of centenarians have characteristics typical of cells from young people, both in their capability of priming
19397-423: The original.] In the modern era, pursuant to the War Powers Resolution , Congress must authorize any troop deployments longer than 60 days, although that process relies on triggering mechanisms that have never been employed, rendering it ineffectual. Additionally, Congress provides a check to presidential military power through its control over military spending and regulation. Presidents have historically initiated
19560-513: The past. The data for 1750 to 1900 are from the UN report "The World at Six Billion" whereas the data from 1950 to 2015 are from a UN data sheet. Using the above figures, the change in population from 2010 to 2015 was: Long-term global population growth is difficult to predict. The United Nations and the US Census Bureau both give different estimates – according to the UN, the world population reached seven billion in late 2011, while
19723-443: The period 1950–55 the crude birth rate was 36.9/1,000 population and the crude death rate was 19.1/1,000. By the period 2015–20, both numbers had dropped significantly to 18.5/1,000 for the crude birth rate and 7.5/1,000 for the crude death rate. UN projections for 2100 show a further decline in the crude birth rate to 11.6/1,000 and an increase in the crude death rate to 11.2/1,000. The total number of births globally
19886-820: The popular thinking that, as population grows, food supply must also be increased to support the growing population; instead, the claim here is that growing population is the result of a growing food supply. Notable proponents of this notion include: agronomist and insect ecologist David Pimentel , behavioral scientist Russell Hopfenberg (the former two publishing a study on the topic in 2001), anthropologist and activist Virginia Abernethy , ecologist Garrett Hardin , science writer and anthropologist Peter Farb , journalist Richard Manning , environmental biologist Alan D. Thornhill, cultural critic and writer Daniel Quinn , and anarcho-primitivist John Zerzan . Scientists generally acknowledge that at least one significant factor contributing to population growth (or overpopulation)
20049-507: The population of Western Han was recorded as 57,671,400 individuals in 12,366,470 households, decreasing to 47,566,772 individuals in 9,348,227 households by AD 146, towards the end of the Han dynasty . From 200 to 400, the world population fell from an estimated 257 million to 206 million, with China suffering the greatest loss. At the founding of the Ming dynasty in 1368, China's population
20212-421: The population of the world at the time agriculture emerged in around 10,000 BC have ranged between 1 million and 15 million. Even earlier, genetic evidence suggests humans may have gone through a population bottleneck of between 1,000 and 10,000 people about 70,000 BC, according to the now largely discredited Toba catastrophe theory . By contrast, it is estimated that around 50–60 million people lived in
20375-412: The presidency has played an increasingly significant role in American political life since the beginning of the 20th century, carrying over into the 21st century with notable expansions during the presidencies of Franklin D. Roosevelt and George W. Bush . In modern times, the president is one of the world's most powerful political figures and the leader of the world's only remaining superpower . As
20538-524: The president (and all other executive branch officers) from simultaneously being a member of Congress. Nevertheless, the modern presidency exerts significant power over legislation, both due to constitutional provisions and historical developments over time. The president's most significant legislative power derives from the Presentment Clause , which gives the president the power to veto any bill passed by Congress . While Congress can override
20701-406: The president believes are needed. Additionally, the president can attempt to shape legislation during the legislative process by exerting influence on individual members of Congress. Presidents possess this power because the Constitution is silent about who can write legislation, but the power is limited because only members of Congress can introduce legislation. The president or other officials of
20864-461: The president in the performance of executive duties. George Washington first claimed the privilege when Congress requested to see Chief Justice John Jay 's notes from an unpopular treaty negotiation with Great Britain . While not enshrined in the Constitution or any other law, Washington's action created the precedent for the privilege. When Nixon tried to use executive privilege as a reason for not turning over subpoenaed evidence to Congress during
21027-504: The president is authorized to adjourn Congress if the House and Senate cannot agree on the time of adjournment; no president has ever had to exercise this power. Suffice it to say that the President is made the sole repository of the executive powers of the United States, and the powers entrusted to him as well as the duties imposed upon him are awesome indeed. Nixon v. General Services Administration , 433 U.S. 425 (1977) ( Rehnquist, J. , dissenting ) The president
21190-422: The president personally has absolute immunity from court cases is contested and has been the subject of several Supreme Court decisions. Nixon v. Fitzgerald (1982) dismissed a civil lawsuit against by-then former president Richard Nixon based on his official actions. Clinton v. Jones (1997) decided that a president has no immunity against civil suits for actions taken before becoming president and ruled that
21353-505: The president to "receive Ambassadors." This clause, known as the Reception Clause, has been interpreted to imply that the president possesses broad power over matters of foreign policy, and to provide support for the president's exclusive authority to grant recognition to a foreign government. The Constitution also empowers the president to appoint United States ambassadors, and to propose and chiefly negotiate agreements between
21516-516: The president to recommend such measures to Congress which the president deems "necessary and expedient". This is done through the constitutionally-based State of the Union address, which usually outlines the president's legislative proposals for the coming year, and through other formal and informal communications with Congress. The president can be involved in crafting legislation by suggesting, requesting, or even insisting that Congress enact laws that
21679-494: The president's veto power with the Line Item Veto Act . The legislation empowered the president to sign any spending bill into law while simultaneously striking certain spending items within the bill, particularly any new spending, any amount of discretionary spending, or any new limited tax benefit. Congress could then repass that particular item. If the president then vetoed the new legislation, Congress could override
21842-508: The president. The state secrets privilege allows the president and the executive branch to withhold information or documents from discovery in legal proceedings if such release would harm national security . Precedent for the privilege arose early in the 19th century when Thomas Jefferson refused to release military documents in the treason trial of Aaron Burr and again in Totten v. United States 92 U.S. 105 (1876), when
22005-493: The president. The power includes the execution and enforcement of federal law and the responsibility to appoint federal executive, diplomatic, regulatory, and judicial officers. Based on constitutional provisions empowering the president to appoint and receive ambassadors and conclude treaties with foreign powers, and on subsequent laws enacted by Congress, the modern presidency has primary responsibility for conducting U.S. foreign policy. The role includes responsibility for directing
22168-412: The previous study, the culture of Okinawa has proven these factors to be important in its large population of centenarians. World population In world demographics , the world population is the total number of humans currently alive. It was estimated by the United Nations to have exceeded eight billion in mid-November 2022. It took around 300,000 years of human prehistory and history for
22331-404: The previous thirty years worked towards "undivided presidential control of the executive branch and its agencies". She criticized proponents of the unitary executive theory for expanding "the many existing uncheckable executive powers—such as executive orders, decrees, memorandums, proclamations, national security directives and legislative signing statements—that already allow presidents to enact
22494-424: The privilege also could not be used in civil suits. These cases established the legal precedent that executive privilege is valid, although the exact extent of the privilege has yet to be clearly defined. Additionally, federal courts have allowed this privilege to radiate outward and protect other executive branch employees but have weakened that protection for those executive branch communications that do not involve
22657-515: The privilege in more cases and at earlier stages of the litigation, thus in some instances causing dismissal of the suits before reaching the merits of the claims, as in the Ninth Circuit 's ruling in Mohamed v. Jeppesen Dataplan, Inc. Critics of the privilege claim its use has become a tool for the government to cover up illegal or embarrassing government actions. The degree to which
22820-500: The process for going to war, but critics have charged that there have been several conflicts in which presidents did not get official declarations, including Theodore Roosevelt 's military move into Panama in 1903, the Korean War , the Vietnam War , and the invasions of Grenada in 1983 and Panama in 1989. The amount of military detail handled personally by the president in wartime has varied greatly. George Washington,
22983-611: The rest of the world often introduced local epidemics of extraordinary virulence. According to the most extreme scholarly claims, as many as 90% of the Native American population of the New World died of Old World diseases such as smallpox , measles , and influenza . Over the centuries, the Europeans had developed high degrees of immunity to these diseases, while the indigenous peoples had no such immunity. During
23146-519: The same study found a median lifespan of 66 years for 100 individuals born after 100 BC but no later than 602 AD); by comparison, male individuals listed in Chambers Biographical Dictionary who died between 1900 and 1949 had a median lifespan of 71.5 years, with a range between 29 and 105 years. The author of the 1994 study concluded that it was only in the second half of the 20th century that medical advances have extended
23309-493: The size and scope of the federal government, including more executive agencies. The traditionally small presidential staff was greatly expanded, with the Executive Office of the President being created in 1939, none of whom require Senate confirmation. Roosevelt's unprecedented re-election to a third and fourth term, the victory of the United States in World War II , and the nation's growing economy all helped established
23472-622: The tradition of throwing out the ceremonial first pitch in 1910 at Griffith Stadium , Washington, D.C., on the Washington Senators's Opening Day . Every president since Taft, except for Jimmy Carter , threw out at least one ceremonial first ball or pitch for Opening Day, the All-Star Game , or the World Series , usually with much fanfare. Every president since Theodore Roosevelt has served as honorary president of
23635-683: The typical Japanese diet, which is particularly low in refined simple carbohydrates, and to hygienic practices. The number of centenarians in relation to the total population was, in September 2010, 114% higher in Shimane Prefecture than the national average. This ratio was also 92% higher in Okinawa Prefecture . In Okinawa, studies have shown five factors that have contributed to the large number of centenarians in that region: Although these factors vary from those mentioned in
23798-407: The veto by its ordinary means, a two-thirds vote in both houses. In Clinton v. City of New York , 524 U.S. 417 (1998), the U.S. Supreme Court ruled such a legislative alteration of the veto power to be unconstitutional. For most of American history, candidates for president have sought election on the basis of a promised legislative agenda. Article II, Section 3, Clause 2 requires
23961-528: The veto should only be used in cases where a bill was unconstitutional, it is now routinely used in cases where presidents have policy disagreements with a bill. The veto – or threat of a veto – has thus evolved to make the modern presidency a central part of the American legislative process. Specifically, under the Presentment Clause, once a bill has been presented by Congress, the president has three options: In 1996, Congress attempted to enhance
24124-684: The world population live in extreme poverty , subsisting on less than US$ 1.9 per day; around 8.9% are malnourished . 87% of the world's over-15s are considered literate . As of January 2024, there were about 5 billion global Internet users, constituting 66% of the world population. The Han Chinese are the world's largest single ethnic group, constituting over 19% of the global population in 2011. The world's most-spoken languages are English (1.132B), Mandarin Chinese (1.117B), Hindi (615M), Spanish (534M) and French (280M). More than three billion people speak an Indo-European language, which
24287-420: The world population observed until the 1970s was later correlated to a non-linear second-order positive feedback between demographic growth and technological development. This feedback can be described as follows: technological advance → increase in the carrying capacity of land for people → demographic growth → more people → more potential inventors → acceleration of technological advance → accelerating growth of
24450-449: The world's most expensive military , which has the second-largest nuclear arsenal . The president also plays a leading role in federal legislation and domestic policymaking. As part of the system of separation of powers , Article I, Section 7 of the Constitution gives the president the power to sign or veto federal legislation. Since modern presidents are typically viewed as leaders of their political parties, major policymaking
24613-613: The world's population as of 2020,while the Latin American and Caribbean regions are home to around 653 million (8%). Northern America, primarily consisting of the United States and Canada, has a population of around 368 million (5%), and Oceania, the least populated region, has about 42 million inhabitants (0.5%). Antarctica only has a very small, fluctuating population of about 1200 people based mainly in polar science stations . Approximately 4.6 billion people live in these ten countries, representing around 57% of
24776-531: The world's population as of July 2023. The UN estimates that by 2023 India will have overtaken China in having the largest population. The tables below list the world's most densely populated countries, both in absolute terms and in comparison to their total populations, as of November 2022. All areas and populations are from The World Factbook , unless otherwise noted. [REDACTED] Palestine Population size fluctuates at differing rates in differing regions. Nonetheless, population growth has been
24939-596: The world's population in 1900. Population growth in the Western world became more rapid after the introduction of vaccination and other improvements in medicine and sanitation . Improved material conditions led to the population of Britain increasing from 10 million to 40 million in the 19th century. The population of the United Kingdom reached 60 million in 2006. The United States saw its population grow from around 5.3 million in 1800 to 106 million in 1920, exceeding 307 million in 2010. The first half of
25102-569: Was a significant milestone, as Jackson was not part of the Virginia and Massachusetts elite that had held the presidency for its first 40 years. Jacksonian democracy sought to strengthen the presidency at the expense of Congress, while broadening public participation as the nation rapidly expanded westward. However, his successor, Martin Van Buren , became unpopular after the Panic of 1837 , and
25265-517: Was available as a remedy. As of October 2019, a case was pending in the federal courts regarding access to personal tax returns in a criminal case brought against Donald Trump by the New York County District Attorney alleging violations of New York state law. As head of state , the president represents the United States government to its own people and represents the nation to the rest of the world. For example, during
25428-443: Was established by King Edward VII in 1908. The famous acrobat and tightrope walker Henry Johnson received a congratulatory letter from Edward VII via his royal courtier Viscount Knollys in 1906. The tradition of royal congratulations continued in 1908, when the secretary for King Edward VII sent a congratulatory letter to Reverend Thomas Lord of Horncastle , Lincolnshire, in a newspaper clipping, declaring, "I am commanded by
25591-561: Was growing at an annual rate of 1.3% (equivalent to around 80 million people), down from a peak of 2.1% during the period 1965–1970. Globally, although the population growth rate has been steadily declining from its peak in 1968, growth still remains high in Sub-Saharan Africa . In fact, during the 2010s, Japan and some countries in Europe began to reduce in population , due to sub-replacement fertility rates. In 2019,
25754-629: Was made in the Declaration of Independence , which was written predominantly by Thomas Jefferson and adopted unanimously on July 4, 1776, by the Second Continental Congress. Recognizing the necessity of closely coordinating their efforts against the British , the Continental Congress simultaneously began the process of drafting a constitution that would bind the states together. There were long debates on
25917-539: Was nearly removed from office, with Congress remaining powerful during the two-term presidency of Civil War general Ulysses S. Grant . After the end of Reconstruction , Grover Cleveland would eventually become the first Democratic president elected since before the war, running in three consecutive elections (1884, 1888, 1892) and winning twice. In 1900, William McKinley became the first incumbent to win re-election since Grant in 1872. After McKinley's assassination by Leon Czolgosz in 1901, Theodore Roosevelt became
26080-475: Was reported to be close to 60 million; toward the end of the dynasty in 1644, it may have approached 150 million. England's population reached an estimated 5.6 million in 1650, up from an estimated 2.6 million in 1500. New crops that were brought to Asia and Europe from the Americas by Portuguese and Spanish colonists in the 16th century are believed to have contributed to population growth. Since their introduction to Africa by Portuguese traders in
26243-489: Was the first branch of government described in the Constitution , to be the dominant branch of government; however, they did not expect a strong executive department. However, presidential power has shifted over time, which has resulted in claims that the modern presidency has become too powerful, unchecked, unbalanced, and "monarchist" in nature. In 2008 professor Dana D. Nelson expressed belief that presidents over
26406-701: Was the most recent to do so in July 1948, known as the Turnip Day Session . In addition, prior to ratification of the Twentieth Amendment in 1933, which brought forward the date on which Congress convenes from December to January, newly inaugurated presidents would routinely call the Senate to meet to confirm nominations or ratify treaties. In practice, the power has fallen into disuse in the modern era as Congress now formally remains in session year-round, convening pro forma sessions every three days even when ostensibly in recess. Correspondingly,
26569-539: Was updated with a current updated picture of the Queen to ensure people did not receive the same card more than once. The Queen further sent her congratulations on one's 105th birthday and every year thereafter as well as on special wedding anniversaries. While the number of centenarians per capita was much lower in ancient times than today, the data suggest that they were not unheard of. Estimates of life expectancy in antiquity are far lower than modern values mostly due to
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