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108-610: The first formalized calendar-based method was developed in 1930 by John Smulders, a Catholic physician from the Netherlands . It was based on knowledge of the menstrual cycle . This method was independently discovered by Hermann Knaus (Austria), and Kyusaku Ogino (Japan). This system was a main form of birth control available to Catholic couples for several decades, until the popularization of symptoms-based fertility awareness methods. A new development in calendar-based methods occurred in 2002, when Georgetown University introduced

216-594: A " prisoner in the Vatican ". This stand-off, which was spoken of as the Roman Question , was resolved by the 1929 Lateran Treaties , whereby the Holy See acknowledged Italian sovereignty over the former Papal States in return for payment and Italy's recognition of papal sovereignty over Vatican City as a new sovereign and independent state. Catholic missionaries generally supported, and sought to facilitate,

324-432: A "safe period" do not appear again for over a thousand years. Scientific advances prompted a number of secular thinkers to advocate periodic abstinence to avoid pregnancy: in the 1840s it was discovered that many animals ovulate during estrus . Because some animals (such as dogs ) have a bloody discharge during estrus, it was assumed that menstruation was the corresponding most fertile time for women. This inaccurate theory

432-410: A high pregnancy rate among couples intending to avoid pregnancy. Of commonly known methods of birth control, only the cervical cap and contraceptive sponge have comparably high failure rates. This lower level of reliability of calendar-based methods is because their formulas make several assumptions that are not always true. The postovulatory ( luteal ) phase has a normal length of 12 to 16 days, and

540-545: A method for avoiding pregnancy. Smulders published his work with the Dutch Roman Catholic medical association, and this was the official rhythm method promoted over the next several decades. In 1932 a Catholic physician, Dr. Leo J Latz, published a book titled The Rhythm of Sterility and Fertility in Women describing the method, and the 1930s also saw the first U.S. Rhythm Clinic (founded by John Rock ) to teach

648-578: A variety of historical circumstances. In the 16th century, the Reformation led to the formation of separate, Protestant groups. From the late 20th century, the Catholic Church has been criticized for its teachings on sexuality , its doctrine against ordaining women , and its handling of sexual abuse cases involving clergy. Catholic (from Greek : καθολικός , romanized :  katholikos , lit.   'universal')

756-405: Is 25% per year. To find the estimated length of the pre-ovulatory infertile phase, eighteen (18) is subtracted from the length of the woman's shortest cycle. To find the estimated start of the post-ovulatory infertile phase, eleven (11) is subtracted from the length of the woman's longest cycle. A woman whose menstrual cycles ranged in length from 30 to 36 days would be estimated to be infertile for

864-540: Is generally regarded as an institution that has its origin in the Medieval Christian setting. The massive Islamic invasions of the mid-7th century began a long struggle between Christianity and Islam throughout the Mediterranean Basin. The Byzantine Empire soon lost the lands of the eastern patriarchates of Jerusalem , Alexandria and Antioch and was reduced to that of Constantinople,

972-523: Is more effective than the Knaus–Ogino method. A product called CycleBeads was developed alongside the method to help the user keep track of estimated high and low fertility points during her menstrual cycle. The standard days method is only effective for women whose cycles are consistently between 26 and 32 days in length; it is estimated that between 50% and 60% of women of reproductive age satisfy this condition. In this system: When used to avoid pregnancy,

1080-415: Is satisfactory for many women and men. The low cost of the method may also enable it to play a useful role in countries that lack funding to provide other methods of birth control . One concern related to the use of calendar-based methods is their relatively high failure rate, compared to other methods of birth control. Even when used perfectly, calendar-based methods, especially the rhythm method, result in

1188-685: Is the bishop of Rome , known as the pope ( Latin : papa , lit.   'father'), whose jurisdiction is called the Holy See ( Sancta Sedes in Latin). In parallel to the diocesan structure are a variety of religious institutes that function autonomously, often subject only to the authority of the pope, though sometimes subject to the local bishop. Most religious institutes only have male or female members but some have both. Additionally, lay members aid many liturgical functions during worship services. The Catholic Church has been described as

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1296-491: Is the universal [katholike] Church." In the Catechetical Lectures ( c.  350 ) of Saint Cyril of Jerusalem , the name "Catholic Church" was used to distinguish it from other groups that also called themselves "the church". The "Catholic" notion was further stressed in the edict De fide Catolica issued 380 by Theodosius I , the last emperor to rule over both the eastern and the western halves of

1404-589: Is true menstruation. However, mid-cycle or anovulatory bleeding can be caused by a number of factors. Incorrectly identifying bleeding as menstruation will cause the method's calculations to be incorrect. It has been suggested that pregnancies resulting from failures of periodic abstinence methods are at increased risk of miscarriage and birth defects due to aged gametes at the time of conception. Other research suggests that timing of conception has no effect on miscarriage rates, low birth weight, or preterm delivery. Luc Bovens has suggested that unprotected intercourse in

1512-651: The Pax Romana made travelling safe. The empire encouraged the spread of a common culture with Greek roots, which allowed ideas to be more easily expressed and understood. Unlike most religions in the Roman Empire, however, Christianity required its adherents to renounce all other gods, a practice adopted from Judaism (see Idolatry ). The Christians' refusal to join pagan celebrations meant they were unable to participate in much of public life, which caused non-Christians—including government authorities—to fear that

1620-809: The Byzantine–Seljuk Wars , which caused Urban to launch the First Crusade aimed at aiding the Byzantine Empire and returning the Holy Land to Christian control. In the 11th century , strained relations between the primarily Greek church and the Latin Church separated them in the East–West Schism, partially due to conflicts over papal authority. The Fourth Crusade and the sacking of Constantinople by renegade crusaders proved

1728-767: The Church of the East also shared in this communion, as did the Oriental Orthodox Churches before the Council of Chalcedon in AD 451; all separated primarily over differences in Christology . The Eastern Catholic Churches, who have a combined membership of approximately 18 million, represent a body of Eastern Christians who returned or remained in communion with the pope during or following these schisms for

1836-721: The Code of Canon Law (1983). "Catholic Church" is also used in the documents of the Second Vatican Council (1962–1965), the First Vatican Council (1869–1870), the Council of Trent (1545–1563), and numerous other official documents. The New Testament , in particular the Gospels , records Jesus' activities and teaching, his appointment of the Twelve Apostles and his Great Commission of

1944-666: The Council of Nicaea declared heretical . The resulting religious discord between Germanic rulers and Catholic subjects was avoided when, in 497, Clovis I , the Frankish ruler, converted to orthodox Catholicism, allying himself with the papacy and the monasteries. The Visigoths in Spain followed his lead in 589, and the Lombards in Italy in the course of the 7th century. Western Christianity , particularly through its monasteries ,

2052-733: The Edict of Thessalonica made Nicene Christianity the state church of the Roman Empire , a position that within the diminishing territory of the Byzantine Empire would persist until the empire itself ended in the fall of Constantinople in 1453, while elsewhere the church was independent of the empire, as became particularly clear with the East–West Schism . During the period of the Seven Ecumenical Councils , five primary sees emerged, an arrangement formalized in

2160-766: The English Reformation and the eventual development of Anglicanism . The Reformation contributed to clashes between the Protestant Schmalkaldic League and the Catholic Emperor Charles V and his allies. The first nine-year war ended in 1555 with the Peace of Augsburg but continued tensions produced a far graver conflict—the Thirty Years' War —which broke out in 1618. In France, a series of conflicts termed

2268-607: The French Wars of Religion was fought from 1562 to 1598 between the Huguenots (French Calvinists ) and the forces of the French Catholic League , which were backed and funded by a series of popes. This ended under Pope Clement VIII , who hesitantly accepted King Henry IV's 1598 Edict of Nantes granting civil and religious toleration to French Protestants. The Council of Trent (1545–1563) became

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2376-543: The Immaculate Conception as a dogma in the Catholic Church . In 1870, the First Vatican Council affirmed the doctrine of papal infallibility when exercised in specifically defined pronouncements, striking a blow to the rival position of conciliarism . Controversy over this and other issues resulted in a breakaway movement called the Old Catholic Church , The Italian unification of

2484-712: The Italian Peninsula , imprisoning Pope Pius VI , who died in captivity. Napoleon later re-established the Catholic Church in France through the Concordat of 1801 . The end of the Napoleonic Wars brought Catholic revival and the return of the Papal States . In 1854, Pope Pius IX , with the support of the overwhelming majority of Catholic bishops, whom he had consulted from 1851 to 1853, proclaimed

2592-462: The Nicene Creed . The Catholic Church teaches that it is the one, holy, catholic and apostolic church founded by Jesus Christ in his Great Commission , that its bishops are the successors of Christ's apostles , and that the pope is the successor to Saint Peter , upon whom primacy was conferred by Jesus Christ. It maintains that it practises the original Christian faith taught by

2700-552: The Polish People's Republic , became the first non-Italian pope in 455 years. His 26 1/2-year pontificate was one of the longest in history, and was credited with hastening the fall of communism in Europe. John Paul II sought to evangelize an increasingly secular world . He travelled more than any other pope, visiting 129 countries, and used television and radio as means of spreading the church's teachings. He also emphasized

2808-875: The Protestant Reformation of the 16th century, when those who ceased to be in communion became known as Protestants. While the Roman Church has been used to describe the pope's Diocese of Rome since the Fall of the Western Roman Empire and into the Early Middle Ages (6th–10th century), Roman Catholic Church has been applied to the whole church in the English language since the Protestant Reformation in

2916-616: The Roman Catholic Church , is the largest Christian church , with 1.28 to 1.39 billion baptized Catholics worldwide as of 2024. It is among the world's oldest and largest international institutions and has played a prominent role in the history and development of Western civilization . The church consists of 24 sui iuris churches , including the Latin Church and 23 Eastern Catholic Churches , which comprise almost 3,500 dioceses and eparchies around

3024-674: The Roman Empire , when establishing the state church of the Roman Empire . Since the East–West Schism of 1054, the Eastern Orthodox Church has taken the adjective Orthodox as its distinctive epithet; its official name continues to be the Orthodox Catholic Church. The Latin Church was described as Catholic , with that description also denominating those in communion with the Holy See after

3132-669: The Tridentine Mass as found in the Roman Missal of 1962, which he titled the "Extraordinary Form". Citing the frailties of advanced age, Benedict resigned in 2013, becoming the first pope to do so in nearly 600 years. Pope Francis, the current pope of the Catholic Church, became in 2013 the first pope from the Americas, the first from the Southern Hemisphere , and the first Pope from outside Europe since

3240-476: The University of Oxford , University of Paris , and University of Bologna . Higher education before then had been the domain of Christian cathedral schools or monastic schools, led by monks and nuns . Evidence of such schools dates back to the 6th century CE. These new universities expanded the curriculum to include academic programs for clerics, lawyers, civil servants, and physicians. The university

3348-562: The dignity of work and natural rights of labourers to have fair wages and safe conditions in Laborem exercens . He emphasized several church teachings, including moral exhortations against abortion, euthanasia , and against widespread use of the death penalty, in Evangelium Vitae . Pope Benedict XVI , elected in 2005, was known for upholding traditional Christian values against secularization , and for increasing use of

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3456-536: The 14th century. To escape instability in Rome, Clement V in 1309 became the first of seven popes to reside in the fortified city of Avignon in southern France during a period known as the Avignon Papacy . The Avignon Papacy ended in 1376 when the pope returned to Rome, but was followed in 1378 by the 38-year-long Western schism , with claimants to the papacy in Rome, Avignon and (after 1409) Pisa. The matter

3564-644: The 1860s incorporated the Papal States, including Rome itself from 1870, into the Kingdom of Italy , thus ending the papacy's temporal power . In response, Pope Pius IX excommunicated King Victor Emmanuel II , refused payment for the land, and rejected the Italian Law of Guarantees , which granted him special privileges. To avoid placing himself in visible subjection to the Italian authorities, he remained

3672-516: The 1920s, Kyusaku Ogino , a Japanese gynecologist, and Hermann Knaus, from Austria, working independently, each made the discovery that ovulation occurs about fourteen days before the next menstrual period. Ogino used his discovery to develop a formula for use in aiding infertile women to time intercourse to achieve pregnancy. In 1930, Johannes Smulders, a Roman Catholic physician from the Netherlands, used Knaus and Ogino's discoveries to create

3780-522: The 1960s, Pope John XXIII convened the Second Vatican Council , which ushered in radical change to church ritual and practice, and in the later 20th century, the long reign of Pope John Paul II contributed to the fall of communism in Europe, and a new public and international role for the papacy. From the late 20th century, the Catholic Church has been criticized for its doctrines on sexuality , its inability to ordain women , and its handling of sexual abuse cases . Pope Pius X (1903–1914) renewed

3888-620: The 21st century. Pope Gregory VII further initiated the Gregorian Reforms regarding the independence of the clergy from secular authority. This led to the Investiture Controversy between the church and the Holy Roman Emperors , over which had the authority to appoint bishops and popes. In 1095, Byzantine emperor Alexius I appealed to Pope Urban II for help against renewed Muslim invasions in

3996-416: The Americas, Asia and Oceania by explorers, conquistadors, and missionaries, as well as by the transformation of societies through the socio-political mechanisms of colonial rule. Pope Alexander VI had awarded colonial rights over most of the newly discovered lands to Spain and Portugal and the ensuing patronato system allowed state authorities, not the Vatican, to control all clerical appointments in

4104-402: The Byzantine Empire lost to the Lombards the city of Ravenna from which it governed the small fragments of Italy, including Rome, that acknowledged its sovereignty. The fall of Ravenna meant that confirmation by a no longer existent exarch was not asked for during the election in 752 of Pope Stephen II and that the papacy was forced to look elsewhere for a civil power to protect it. In 754, at

4212-594: The Catholic and Orthodox churches. Several eastern churches reunited, forming the majority of the Eastern Catholic Churches . The Age of Discovery beginning in the 15th century saw the expansion of Western Europe's political and cultural influence worldwide. Because of the prominent role the strongly Catholic nations of Spain and Portugal played in Western colonialism, Catholicism was spread to

4320-534: The Christians were angering the gods and thereby threatening the peace and prosperity of the Empire. The resulting persecutions were a defining feature of Christian self-understanding until Christianity was legalized in the 4th century. In 313, Emperor Constantine I 's Edict of Milan legalized Christianity, and in 330 Constantine moved the imperial capital to Constantinople , modern Istanbul, Turkey . In 380

4428-626: The Edict of Nantes by King Louis XIV of France , which ended a century-long policy of religious toleration of Protestant Huguenots. As the papacy resisted pushes for Gallicanism , the French Revolution of 1789 shifted power to the state, caused the destruction of churches, the establishment of a Cult of Reason , and the martyrdom of nuns during the Reign of Terror . In 1798, Napoleon Bonaparte 's General Louis-Alexandre Berthier invaded

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4536-457: The European imperial powers' conquest of Africa during the late nineteenth century. According to the historian of religion Adrian Hastings , Catholic missionaries were generally unwilling to defend African rights or encourage Africans to see themselves as equals to Europeans, in contrast to Protestant missionaries, who were more willing to oppose colonial injustices. During the 20th century,

4644-569: The Holy See, or the Apostolic See (meaning the see of the apostle Peter). Directly serving the pope is the Roman Curia, the central governing body that administers the day-to-day business of the Catholic Church. The pope is also sovereign of Vatican City, a small city-state entirely enclaved within the city of Rome, which is an entity distinct from the Holy See. It is as head of the Holy See, not as head of Vatican City State, that

4752-402: The Pope's insistence on public neutrality and diplomatic language has become a source of much criticism and debate. Nevertheless, in every country under German occupation, priests played a major part in rescuing Jews. Israeli historian Pinchas Lapide estimated that Catholic rescue of Jews amounted to somewhere between 700,000 and 860,000 people. The Nazi persecution of the Catholic Church

4860-410: The Reformation, which gave birth to the great majority of Protestant denominations and also crypto-Protestantism within the Catholic Church. Meanwhile, Henry VIII petitioned Pope Clement VII for a declaration of nullity concerning his marriage to Catherine of Aragon . When this was denied, he had the Acts of Supremacy passed to make himself Supreme Head of the Church of England , spurring

4968-499: The Second World War, also because they had powerful supporters from the Vatican. The judgment of Pius XII is made more difficult by the sources, because the church archives for his tenure as nuncio, cardinal secretary of state and pope are in part closed or not yet processed. The Second Vatican Council (1962–65) introduced the most significant changes to Catholic practices since the Council of Trent, four centuries before. Initiated by Pope John XXIII, this ecumenical council modernized

5076-443: The Standard Days Method. Designed to be simpler to teach and use than the older rhythm method, the Standard Days Method was initially integrated piloted in 30 family planning programs worldwide. However, only 16 countries scaled up beyond pilots, with limited adoption since. Most menstrual cycles have several days at the beginning that are infertile (pre-ovulatory infertility), a period of fertility, and then several days just before

5184-532: The Standard Days Method. The Standard Days Method is promoted in conjunction with a product called CycleBeads, a ring of colored beads which are meant to help the user keep track of her fertile and non-fertile days. While the terms rhythm method and fertility awareness are not synonymous, some sources do treat them as such. However, fertility awareness is usually used as a broad term that includes tracking basal body temperature and cervical mucus as well as cycle length. The World Health Organization considers

5292-484: The War, and established aid networks to help victims, but he secretly assisted the anti-Hitler resistance and shared intelligence with the Allies. His first encyclical Summi Pontificatus (1939) expressed dismay at the 1939 Invasion of Poland and reiterated Catholic teaching against racism. He expressed concern against race killings on Vatican Radio , and intervened diplomatically to attempt to block Nazi deportations of Jews in various countries from 1942 to 1944. But

5400-458: The apostles, instructing them to continue his work. The book Acts of Apostles , tells of the founding of the Christian church and the spread of its message to the Roman Empire. The Catholic Church teaches that its public ministry began on Pentecost , occurring fifty days following the date Christ is believed to have resurrected . At Pentecost, the apostles are believed to have received the Holy Spirit, preparing them for their mission in leading

5508-400: The apostles, preserving the faith infallibly through scripture and sacred tradition as authentically interpreted through the magisterium of the church. The Roman Rite and others of the Latin Church, the Eastern Catholic liturgies , and institutes such as mendicant orders , enclosed monastic orders and third orders reflect a variety of theological and spiritual emphases in

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5616-410: The areas under his control definitively established a form of caesaropapism , in which "he had the right and duty of regulating by his laws the minutest details of worship and discipline, and also of dictating the theological opinions to be held in the Church", re-established imperial power over Rome and other parts of the West, initiating the period termed the Byzantine Papacy (537–752), during which

5724-451: The bishops of Rome, or popes, required approval from the emperor in Constantinople or from his representative in Ravenna for consecration, and most were selected by the emperor from his Greek-speaking subjects, resulting in a "melting pot" of Western and Eastern Christian traditions in art as well as liturgy. Most of the Germanic tribes who in the following centuries invaded the Roman Empire had adopted Christianity in its Arian form, which

5832-426: The chaste limitation of offspring." This is interpreted as favoring the then-new, more reliable symptoms-based fertility awareness methods over the rhythm method. Currently, many fertility awareness teachers consider the rhythm method to have been obsolete for at least 20 years. New attention was drawn to calendar-based methods in 2002, when the Institute for Reproductive Health at Georgetown University introduced

5940-496: The church's approach to ecumenism , and a call to improved relations with non-Christian religions, especially Judaism, in its document Nostra aetate . The council, however, generated significant controversy in implementing its reforms: proponents of the " Spirit of Vatican II " such as Swiss theologian Hans Küng said that Vatican II had "not gone far enough" to change church policies. Traditionalist Catholics , such as Archbishop Marcel Lefebvre , however, strongly criticized

6048-407: The church's global reach continued to grow, despite the rise of anti-Catholic authoritarian regimes and the collapse of European Empires, accompanied by a general decline in religious observance in the West. Under Popes Benedict XV , and Pius XII , the Holy See sought to maintain public neutrality through the World Wars, acting as peace broker and delivering aid to the victims of the conflicts. In

6156-464: The church. Of its seven sacraments , the Eucharist is the principal one, celebrated liturgically in the Mass . The church teaches that through consecration by a priest , the sacrificial bread and wine become the body and blood of Christ . The Virgin Mary is venerated as the Perpetual Virgin , Mother of God , and Queen of Heaven ; she is honoured in dogmas and devotions . Catholic social teaching emphasizes voluntary support for

6264-426: The church. The Catholic Church teaches that the college of bishops , led by the bishop of Rome are the successors to the Apostles. In the account of the Confession of Peter found in the Gospel of Matthew , Christ designates Peter as the "rock" upon which Christ's church will be built. The Catholic Church considers the bishop of Rome, the pope, to be the successor to Saint Peter . Some scholars state Peter

6372-422: The church. There are three levels of clergy: the episcopate, composed of bishops who hold jurisdiction over a geographic area called a diocese or eparchy ; the presbyterate, composed of priests ordained by bishops and who work in local dioceses or religious orders; and the diaconate, composed of deacons who assist bishops and priests in a variety of ministerial roles. Ultimately leading the entire Catholic Church

6480-441: The city of Rome, though enjoying extraterritorial privileges accredited to the Holy See. Theodor Ludwig Wilhelm Bischoff Theodor Ludwig Wilhelm von Bischoff (28 October 1807 in Hannover – 5 December 1882 in Munich ) was a German physician and biologist. He lectured on pathological anatomy at Heidelberg (1835-1843) and held professorships in anatomy and physiology at Giessen (1843-1855) and Munich , where he

6588-584: The conflict. Catholic clergy played a leading role in the government of the fascist Slovak State , which collaborated with the Nazis, copied their anti-Semitic policies, and helped them carry out the Holocaust in Slovakia. Jozef Tiso , the President of the Slovak State and a Catholic priest, supported his government's deportation of Slovakian Jews to extermination camps. The Vatican protested against these Jewish deportations in Slovakia and in other Nazi puppet regimes including Vichy France , Croatia, Bulgaria , Italy and Hungary. Around 1943, Adolf Hitler planned

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6696-407: The council, arguing that its liturgical reforms led "to the destruction of the Holy Sacrifice of the Mass and the sacraments", among other issues. The teaching on the morality of contraception also came under scrutiny; after a series of disagreements, Humanae vitae upheld the church's prohibition of all forms of contraception. In 1978, Pope John Paul II , formerly Archbishop of Kraków in

6804-435: The development of the role of the papacy in the subsequent church". These roles, Brown says, "contributed enormously to seeing the bishop of Rome, the bishop of the city where Peter died and where Paul witnessed the truth of Christ, as the successor of Peter in care for the church universal". Conditions in the Roman Empire facilitated the spread of new ideas. The empire's network of roads and waterways facilitated travel, and

6912-425: The driving force behind the Counter-Reformation in response to the Protestant movement. Doctrinally, it reaffirmed central Catholic teachings such as transubstantiation and the requirement for love and hope as well as faith to attain salvation. In subsequent centuries, Catholicism spread widely across the world, in part through missionaries and imperialism , although its hold on European populations declined due to

7020-449: The eighth-century Gregory III . Francis has made efforts to further close Catholicism's estrangement with the Eastern churches. His installation was attended by Patriarch Bartholomew I of Constantinople of the Eastern Orthodox Church, the first time since the Great Schism of 1054 that the Eastern Orthodox Ecumenical Patriarch of Constantinople has attended a papal installation, while he also met Patriarch Kirill of Moscow , head of

7128-400: The empire's capital. As a result of Islamic domination of the Mediterranean , the Frankish state, centred away from that sea, was able to evolve as the dominant power that shaped the Western Europe of the Middle Ages. The battles of Toulouse and Poitiers halted the Islamic advance in the West and the failed siege of Constantinople halted it in the East. Two or three decades later, in 751,

7236-455: The final breach. In this age great gothic cathedrals in France were an expression of popular pride in the Christian faith. In the early 13th century mendicant orders were founded by Francis of Assisi and Dominic de Guzmán . The studia conventualia and studia generalia of the mendicant orders played a large role in the transformation of church-sponsored cathedral schools and palace schools, such as that of Charlemagne at Aachen , into

7344-406: The first 11 days of her cycle (30-19=11), to be fertile on days 12–25, and to resume infertility on day 26 (36-10=26). When used to avoid pregnancy, such fertility awareness-based methods have a typical-use failure rate of 25% per year. Developed at Georgetown University 's Institute for Reproductive Health, the standard days method is a variation of the rhythm method that has a simpler rule set and

7452-403: The growth of religious scepticism during and after the Enlightenment. From the 17th century onward, the Enlightenment questioned the power and influence of the Catholic Church over Western society. In the 18th century, writers such as Voltaire and the Encyclopédistes wrote biting critiques of both religion and the Catholic Church. One target of their criticism was the 1685 revocation of

7560-404: The independence of papal office by abolishing the veto of Catholic powers in papal elections, and his successors Benedict XV (1914–1922) and Pius XI (1922–1939) concluded the modern independence of the Vatican State within Italy. Benedict XV was elected at the outbreak of the First World War . He attempted to mediate between the powers and established a Vatican relief office, to assist victims of

7668-406: The infertile periods of the menstrual cycle may still result in conceptions, but create zygotes incapable of implanting. Bovens maintains that, if one defines abortion to include any destruction of fertilized eggs, then the use of the rhythm method probably results in a large number of abortions. Catholic Church God Schools Relations with: The Catholic Church , also known as

7776-602: The kidnapping of the Pope and his internment in Germany. He gave SS General Wolff a corresponding order to prepare for the action. While Pope Pius XII has been credited with helping to save hundreds of thousands of Jews during the Holocaust , the church has also been accused of having encouraged centuries of antisemitism by its teachings and not doing enough to stop Nazi atrocities. Many Nazi criminals escaped overseas after

7884-651: The largest Eastern Orthodox church, in 2016; this was reported as the first such high-level meeting between the two churches since the Great Schism of 1054. In 2017 during a visit in Egypt , Pope Francis reestablished mutual recognition of baptism with the Coptic Orthodox Church . The Catholic Church follows an episcopal polity , led by bishops who have received the sacrament of Holy Orders who are given formal jurisdictions of governance within

7992-550: The late 16th century. Further, some will refer to the Latin Church as Roman Catholic in distinction from the Eastern Catholic churches. "Roman Catholic" has occasionally appeared also in documents produced both by the Holy See, and notably used by certain national episcopal conferences and local dioceses. The name Catholic Church for the whole church is used in the Catechism of the Catholic Church (1990) and

8100-427: The method to Catholic couples. In the first half of the 20th century, most users of the rhythm method were Catholic; they were following their church's teaching that all other methods of birth control were sinful. In 1968 the encyclical Humanae vitae included the statement, "It is supremely desirable... that medical science should by the study of natural rhythms succeed in determining a sufficiently secure basis for

8208-577: The mid-6th century by Emperor Justinian I as the pentarchy of Rome, Constantinople , Antioch , Jerusalem and Alexandria . In 451 the Council of Chalcedon , in a canon of disputed validity, elevated the see of Constantinople to a position "second in eminence and power to the bishop of Rome". From c.  350  – c.  500 , the bishops, or popes, of Rome, steadily increased in authority through their consistent intervening in support of orthodox leaders in theological disputes, which encouraged appeals to them. Emperor Justinian , who in

8316-741: The new colonies. In 1521 the Portuguese explorer Ferdinand Magellan made the first Catholic converts in the Philippines . Elsewhere, Portuguese missionaries under the Spanish Jesuit Francis Xavier evangelized in India, China, and Japan. The French colonization of the Americas beginning in the 16th century established a Catholic francophone population and forbade non-Catholics to settle in Quebec . In 1415, Jan Hus

8424-665: The next menstruation that are infertile (post-ovulatory infertility). The first day of red bleeding is considered day one of the menstrual cycle. To use these methods, a woman is required to know the length of her menstrual cycles. Imperfect use of calendar-based methods would consist of not correctly tracking the length of the woman's cycles, thus using the wrong numbers in the formula, or of having unprotected intercourse on an identified fertile day. The discipline required to keep accurate records of menstrual cycles, and to abstain from unprotected intercourse, makes imperfect use fairly common. The typical-use failure rate of calendar-based methods

8532-458: The numerous visual artists sponsored by the church. Historian Paul Legutko of Stanford University said the Catholic Church is "at the center of the development of the values, ideas, science, laws, and institutions which constitute what we call Western civilization ". In Western Christendom , the first universities in Europe were established by monks. Beginning in the 11th century, several older cathedral schools became universities, such as

8640-406: The oldest multinational organization in the world. The hierarchy of the Catholic Church is headed by the pope, currently Pope Francis , who was elected on 13 March 2013 by a papal conclave . The office of the pope is known as the papacy . The Catholic Church holds that Christ instituted the papacy upon giving the keys of Heaven to Saint Peter . His ecclesiastical jurisdiction is called

8748-415: The only morally acceptable form of family planning . Methods accepted by this church are referred to as natural family planning (NFP): so at one time, the term "the rhythm method" was synonymous with NFP. Today, NFP is an umbrella term that includes symptoms-based fertility awareness methods and the lactational amenorrhea method as well as calendar-based methods such as rhythm. This overlap between uses of

8856-683: The pope receives ambassadors of states and sends them his own diplomatic representatives. The Holy See also confers orders, decorations and medals , such as the orders of chivalry originating from the Middle Ages . While the famous Saint Peter's Basilica is located in Vatican City, above the traditional site of Saint Peter's tomb , the papal cathedral for the Diocese of Rome is the Archbasilica of Saint John Lateran , located within

8964-463: The practices of the Catholic Church, allowing the Mass to be said in the vernacular (local language) and encouraging "fully conscious, and active participation in liturgical celebrations". It intended to engage the church more closely with the present world ( aggiornamento ), which was described by its advocates as an "opening of the windows". In addition to changes in the liturgy, it led to changes to

9072-683: The preservation and transmission of ancient culture. During this period, monastic Ireland became a centre of learning and early Irish missionaries such as Columbanus and Columba spread Christianity and established monasteries across continental Europe. The Catholic Church was the dominant influence on Western civilization from Late Antiquity to the dawn of the modern age. It was the primary sponsor of Romanesque, Gothic, Renaissance, Mannerist and Baroque styles in art, architecture and music. Renaissance figures such as Raphael , Michelangelo , Leonardo da Vinci , Botticelli , Fra Angelico , Tintoretto , Titian , Bernini and Caravaggio are examples of

9180-462: The prominent universities of Europe. Scholastic theologians and philosophers such as the Dominican priest Thomas Aquinas studied and taught at these studia. Aquinas' Summa Theologica was an intellectual milestone in its synthesis of the legacy of ancient Greek philosophers such as Plato and Aristotle with the content of Christian revelation. A growing sense of church-state conflicts marked

9288-475: The public in misleading ways, and have argued that the true efficacy figures are likely to be much lower. Another meta study indicated that typical-use efficacy ranged between 90% and 82%, a bit lower than the 88% figure originally found. Several web-based implementations of the cycle method exist, as well as mobile apps such as Natural Cycles . The Standard Days method (SDM) was introduced as part of family planning programs in developing countries. The method

9396-407: The rhythm method formula assumes all women have luteal phase lengths within this range. However, many women have shorter luteal phases, and a few have longer luteal phases. For these women, the rhythm method formula incorrectly identifies a few fertile days as being in the infertile period. Roughly 30-50% of women have phases outside this range. Finally, calendar-based methods assume that all bleeding

9504-409: The rhythm method to be a specific type of calendar-based method, and calendar-based methods to be only one form of fertility awareness. More effective than calendar-based methods, systems of fertility awareness that track basal body temperature, cervical mucus, or both, are known as symptoms-based methods. Teachers of symptoms-based methods take care to distance their systems from the poor reputation of

9612-423: The rhythm method. Many consider the rhythm method to have been obsolete for at least 20 years, and some even exclude calendar-based methods from their definition of fertility awareness. Some sources may treat the terms rhythm method and natural family planning as synonymous. In the early 20th century, the calendar-based method known as the rhythm method was promoted by members of the Roman Catholic Church as

9720-590: The schism was reconciled, unresolved issues would lead to further division. In the 11th century, the efforts of Hildebrand of Sovana led to the creation of the College of Cardinals to elect new popes, starting with Pope Alexander II in the papal election of 1061 . When Alexander II died, Hildebrand was elected to succeed him, as Pope Gregory VII . The basic election system of the College of Cardinals which Gregory VII helped establish has continued to function into

9828-569: The sick, the poor, and the afflicted through the corporal and spiritual works of mercy . The Catholic Church operates tens of thousands of Catholic schools, universities and colleges , hospitals , and orphanages around the world, and is the largest non-government provider of education and health care in the world. Among its other social services are numerous charitable and humanitarian organizations. The Catholic Church has profoundly influenced Western philosophy , culture , art , literature , music , law , and science . Catholics live all over

9936-599: The standard days method has been estimated to have perfect-use efficacy of 95% and typical-use efficacy of 88%. These figures are based on a 2002 study in Bolivia, Peru, and the Philippines of women of reproductive age having menstrual cycles between 26 and 32 days, and on a 2014 study in Turkey. However, other researchers have criticized the methodology of the first study, have stated that the 95% figure has been presented to

10044-521: The term "bishop of Rome" to the most prominent members of the clergy in the earlier period and also to Peter himself. On this basis protestant scholars Oscar Cullmann , Henry Chadwick , and Bart D. Ehrman question whether there was a formal link between Peter and the modern papacy. Raymond E. Brown also says that it is anachronistic to speak of Peter in terms of local bishop of Rome, but that Christians of that period would have looked on Peter as having "roles that would contribute in an essential way to

10152-473: The terms "the rhythm method" and "natural family planning" may contribute to confusion. The first day of bleeding is considered day one of the menstrual cycle. It is not known if historical cultures were aware of what part of the menstrual cycle is most fertile. In the year 388, Augustine of Hippo wrote of periodic abstinence. Addressing followers of Manichaeism , his former religion, he said, "Is it not you who used to counsel us to observe as much as possible

10260-586: The time when a woman, after her purification, is most likely to conceive, and to abstain from cohabitation at that time...?" If the Manichaieans practiced something like the Jewish observances of menstruation , then the "time... after her purification" would have indeed been when "a woman... is most likely to conceive." Over a century previously, however, the influential Greek physician Soranus had written that "the time directly before and after menstruation"

10368-705: The urgent request of Pope Stephen, the Frankish king Pepin the Short conquered the Lombards. He then gifted the lands of the former exarchate to the pope, thus initiating the Papal States . Rome and the Byzantine East would delve into further conflict during the Photian schism of the 860s, when Photius criticized the Latin west of adding of the filioque clause after being excommunicated by Nicholas I . Though

10476-620: The war and reunite families. The interwar Pope Pius XI modernized the papacy, appointing 40 indigenous bishops and concluding fifteen concordats, including the Lateran Treaty with Italy which founded the Vatican City State . His successor Pope Pius XII led the Catholic Church through the Second World War and early Cold War . Like his predecessors, Pius XII sought to publicly maintain Vatican neutrality in

10584-582: The world . The pope , who is the bishop of Rome, is the chief pastor of the church. The Diocese of Rome , known as the Holy See , is the central governing authority of the church. The administrative body of the Holy See, the Roman Curia , has its principal offices in Vatican City , which is a small, independent city-state and enclave within the city of Rome , of which the pope is head of state . The core beliefs of Catholicism are found in

10692-478: The world through missions , immigration , diaspora , and conversions . Since the 20th century, the majority have resided in the Global South , partially due to secularization in Europe and North America. The Catholic Church shared communion with the Eastern Orthodox Church until the East–West Schism in 1054, disputing particularly the authority of the pope . Before the Council of Ephesus in AD 431,

10800-487: Was a major factor in preserving classical civilization , with its art (see Illuminated manuscript ) and literacy. Through his Rule , Benedict of Nursia ( c.  480 –543), one of the founders of Western monasticism , exerted an enormous influence on European culture through the appropriation of the monastic spiritual heritage of the early Catholic Church and, with the spread of the Benedictine tradition, through

10908-533: Was appointed to the chair of anatomy and physiology in 1854. In 1843, Theodor von Bischoff was elected as member of the German Academy of Sciences. His most important contributions were made in embryology with a series of four exhaustive memoirs on the development of the mammalian ovum ; published in 1842 (rabbit), 1845 (dog), 1852 ( guinea pig ), and 1854 ( roe deer ). His studies concerning animal metabolism by measuring urea were less successful, as

11016-530: Was at its most intense in Poland , and Catholic resistance to Nazism took various forms. Some 2,579 Catholic clergy were sent to the Priest Barracks of Dachau Concentration Camp , including 400 Germans. Thousands of priests, nuns and brothers were imprisoned, taken to a concentration camp, tortured and murdered, including Saints Maximilian Kolbe and Edith Stein . Catholics fought on both sides in

11124-645: Was burned at the stake for heresy, but his reform efforts encouraged Martin Luther , an Augustinian friar in modern-day Germany, who sent his Ninety-five Theses to several bishops in 1517. His theses protested key points of Catholic doctrine as well as the sale of indulgences , and along with the Leipzig Debate this led to his excommunication in 1521. In Switzerland , Huldrych Zwingli , John Calvin and other Protestant Reformers further criticized Catholic teachings. These challenges developed into

11232-464: Was first used to describe the church in the early 2nd century. The first known use of the phrase "the catholic church" ( Greek : καθολικὴ ἐκκλησία , romanized :  katholikḕ ekklēsía ) occurred in the letter written about 110 AD from Saint Ignatius of Antioch to the Smyrnaeans , which read: "Wheresoever the bishop shall appear, there let the people be, even as where Jesus may be, there

11340-410: Was largely resolved in 1415–17 at the Council of Constance , with the claimants in Rome and Pisa agreeing to resign and the third claimant excommunicated by the cardinals, who held a new election naming Martin V pope. In 1438, the Council of Florence convened, which featured a strong dialogue focussed on understanding the theological differences between the East and West, with the hope of reuniting

11448-431: Was popularized by physicians Bischoff , Félix Archimède Pouchet , and Adam Raciborski. In 1854, an English physician named George Drysdale correctly taught his patients that the days near menstruation are the least fertile, but this remained the minority view for the remainder of the 19th century. In 1905 Theodoor Hendrik van de Velde , a Dutch gynecologist, showed that women only ovulate once per menstrual cycle. In

11556-416: Was the first bishop of Rome. Others say that the institution of the papacy is not dependent on the idea that Peter was bishop of Rome or even on his ever having been in Rome. Many scholars hold that a church structure of plural presbyters/bishops persisted in Rome until the mid-2nd century, when the structure of a single bishop and plural presbyters was adopted, and that later writers retrospectively applied

11664-492: Was the most fertile part of a woman's cycle; this inaccuracy was repeated in the 6th century by the Byzantine physician Aëtius . Similarly, a Chinese sex manual written close to the year 600 stated that only the first five days following menstruation were fertile. Some historians believe that Augustine, too, incorrectly identified the days immediately after menstruation as the time of highest fertility. Written references to

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