Misplaced Pages

#906093

136-855: Samuel Livingston Mather was born July 13, 1851, in Cleveland, Ohio , to Samuel and Georgiana Pomeroy ( née Woolson) Mather. He was a descendant of Rev. Richard Mather , a famous English pastor who emigrated to North America in 1635. Although Reverend Richard Mather (1596-1669) was famously father to Reverend Increase Mather (1639-1723) and grandfather to Cotton Mather (1663-1728). Samuel Livingston Mather (1851-1931) descended from Richard's son Timothy "Farmer" Mather (1628-1685), Richard Mather (1653-1688), Samuel Mather (1683-1725), Captain Richard Mather (1712-1790), Samuel Mather (1745-1809), Samuel Mather (1771-1854), and Samuel Livingston Mather Sr. (1817-1890). His grandfather Samuel Mather, Jr. (1771-1854 )

272-412: A BOS process is manufactured in one-twelfth the time. Today, electric arc furnaces (EAF) are a common method of reprocessing scrap metal to create new steel. They can also be used for converting pig iron to steel, but they use a lot of electrical energy (about 440 kWh per metric ton), and are thus generally only economical when there is a plentiful supply of cheap electricity. The steel industry

408-713: A carbon-intermediate steel by the 1st century AD. There is evidence that carbon steel was made in Western Tanzania by the ancestors of the Haya people as early as 2,000 years ago by a complex process of "pre-heating" allowing temperatures inside a furnace to reach 1300 to 1400 °C. Evidence of the earliest production of high carbon steel in South Asia is found in Kodumanal in Tamil Nadu ,

544-444: A change of volume. In this case, expansion occurs. Internal stresses from this expansion generally take the form of compression on the crystals of martensite and tension on the remaining ferrite, with a fair amount of shear on both constituents. If quenching is done improperly, the internal stresses can cause a part to shatter as it cools. At the very least, they cause internal work hardening and other microscopic imperfections. It

680-519: A city in the U.S. state of Ohio and the county seat of Cuyahoga County . Located along the southern shore of Lake Erie , it is situated across the Canada–United States maritime border and lies approximately 60 mi (97 km) west of Pennsylvania . Cleveland is the most populous city on Lake Erie, the second-most populous city in Ohio, and the 54th-most populous city in the U.S. with

816-827: A downtown Heinen's supermarket. Cleveland's historic ecclesiastical architecture includes the Presbyterian Old Stone Church in downtown Cleveland, the onion domed St. Theodosius Russian Orthodox Cathedral in Tremont , and the Catholic Cathedral of St. John the Evangelist along with myriad other ethnically inspired Roman Catholic churches. The Cleveland City Planning Commission has officially designated 34 neighborhoods in Cleveland. Centered on Public Square, Downtown Cleveland

952-428: A ferrite BCC crystal form, but at higher carbon content it takes a body-centred tetragonal (BCT) structure. There is no thermal activation energy for the transformation from austenite to martensite. There is no compositional change so the atoms generally retain their same neighbours. Martensite has a lower density (it expands during the cooling) than does austenite, so that the transformation between them results in

1088-714: A foreign-born population of 30%. At this time, Cleveland saw the rise of radical labor movements, most prominently the Industrial Workers of the World (IWW), in response to the conditions of the largely immigrant and migrant workers. In 1919, the city attracted national attention amid the First Red Scare for the Cleveland May Day Riots , in which local socialist and IWW demonstrators clashed with anti-socialists. The riots occurred during

1224-578: A gradual economic recovery under Mayor George V. Voinovich in the 1980s. Downtown saw the construction of the Key Tower and 200 Public Square skyscrapers, as well as the development of the Gateway Sports and Entertainment Complex – consisting of Progressive Field and Rocket Mortgage FieldHouse – and North Coast Harbor, including the Rock and Roll Hall of Fame , Cleveland Browns Stadium , and

1360-445: A hard but brittle martensitic structure. The steel is then tempered, which is just a specialized type of annealing, to reduce brittleness. In this application the annealing (tempering) process transforms some of the martensite into cementite, or spheroidite and hence it reduces the internal stresses and defects. The result is a more ductile and fracture-resistant steel. When iron is smelted from its ore, it contains more carbon than

1496-613: A high school diploma or equivalent. The median age was 36.6 years. As of 2020 , the racial and ethnic composition of the city was 47.5% African American, 32.1% non-Hispanic white , 13.1% Hispanic or Latino , 2.8% Asian , 0% Pacific Islander , 0.2% Native American, and 3.8% from two or more races . 85.3% of Clevelanders age five and older spoke only English at home, while 14.7% spoke a language other than English, including Spanish , Arabic , Chinese , Hungarian , Albanian , and various Slavic languages ( Russian , Polish , Serbian , Croatian , and Slovene ). The city's spoken accent

SECTION 10

#1732800835907

1632-804: A homogeneous settlement of New England Protestants , it evolved into a city with a diverse religious composition. The predominant faith among Clevelanders today is Christianity ( Catholic , Protestant, and Eastern and Oriental Orthodox ), with Jewish, Muslim , Hindu , and Buddhist minorities. Within Cleveland, the neighborhoods with the highest foreign-born populations are Asiatown/Goodrich–Kirtland Park (32.7%), Clark–Fulton (26.7%), West Boulevard (18.5%), Brooklyn Centre (17.3%), Downtown (17.2%), University Circle (15.9%, with 20% in Little Italy), and Jefferson (14.3%). Recent waves of immigration have brought new groups to Cleveland, including Ethiopians and South Asians , as well as immigrants from Russia and

1768-412: A narrow range of concentrations of mixtures of carbon and iron that make steel, several different metallurgical structures, with very different properties can form. Understanding such properties is essential to making quality steel. At room temperature , the most stable form of pure iron is the body-centred cubic (BCC) structure called alpha iron or α-iron. It is a fairly soft metal that can dissolve only

1904-635: A naturalization ceremony of new immigrants. Cleveland's location on the Cuyahoga River and Lake Erie has been key to its growth as a major commercial center. Steel and many other manufactured goods emerged as leading industries. The city has since diversified its economy in addition to its manufacturing sector. Established in 1914, the Federal Reserve Bank of Cleveland is one of 12 U.S. Federal Reserve Banks . Its downtown building, located on East 6th Street and Superior Avenue ,

2040-583: A population of 372,624 in 2020. The city anchors the Cleveland metropolitan area , the 33rd-largest in the U.S. at 2.18 million residents, as well as the larger Cleveland– Akron – Canton combined statistical area with 3.63 million residents. Cleveland was founded in 1796 near the mouth of the Cuyahoga River as part of the Connecticut Western Reserve in modern-day Northeast Ohio by General Moses Cleaveland , after whom

2176-573: A residential street. In the late 1880s, writer Bayard Taylor described it as "the most beautiful street in the world". Known as Cleveland's "Crystal Palace", the five-story Cleveland Arcade (sometimes called the Old Arcade) was built in 1890 and renovated in 2001 as a Hyatt Regency Hotel. Another major architectural landmark, the Cleveland Trust Company Building , was completed in 1907 and renovated in 2015 as

2312-534: A small concentration of carbon, no more than 0.005% at 0 °C (32 °F) and 0.021 wt% at 723 °C (1,333 °F). The inclusion of carbon in alpha iron is called ferrite . At 910 °C, pure iron transforms into a face-centred cubic (FCC) structure, called gamma iron or γ-iron. The inclusion of carbon in gamma iron is called austenite. The more open FCC structure of austenite can dissolve considerably more carbon, as much as 2.1%, (38 times that of ferrite) carbon at 1,148 °C (2,098 °F), which reflects

2448-453: A steel's final rolling, it is heat treated for strength; however, this is relatively rare. Steel was known in antiquity and was produced in bloomeries and crucibles . The earliest known production of steel is seen in pieces of ironware excavated from an archaeological site in Anatolia ( Kaman-Kalehöyük ) which are nearly 4,000 years old, dating from 1800 BC. Wootz steel

2584-630: A timekeeper in one of his father's mines in Ishpeming, Michigan , a premature explosion left him with a fractured skull, broken left arm, and a spinal injury. He spent the next three years convalescing (although the arm was left permanently stiff). He spent several months traveling in Europe in 1872 and returned to Cleveland in 1873, where he became an executive in his father's company. In 1881, Mather married Flora Stone , daughter of Cleveland industrialist and railroad magnate Amasa Stone . Flora's sister

2720-802: A total of 13 times beginning in 1868. It was the river fire of June 1969 that spurred the city to action under Mayor Carl B. Stokes, and played a key role in the passage of the Clean Water Act in 1972 and the National Environmental Policy Act later that year. Since that time, the Cuyahoga has been extensively cleaned up through the efforts of the city and the Ohio Environmental Protection Agency (OEPA). In addition to continued efforts to improve freshwater and air quality, Cleveland

2856-672: Is continuously cast into long slabs, cut and shaped into bars and extrusions and heat treated to produce a final product. Today, approximately 96% of steel is continuously cast, while only 4% is produced as ingots. The ingots are then heated in a soaking pit and hot rolled into slabs, billets , or blooms . Slabs are hot or cold rolled into sheet metal or plates. Billets are hot or cold rolled into bars, rods, and wire. Blooms are hot or cold rolled into structural steel , such as I-beams and rails . In modern steel mills these processes often occur in one assembly line , with ore coming in and finished steel products coming out. Sometimes after

SECTION 20

#1732800835907

2992-460: Is 569 feet (173 m) above sea level ; however, the city lies on a series of irregular bluffs lying roughly parallel to the lake. In Cleveland these bluffs are cut principally by the Cuyahoga River , Big Creek, and Euclid Creek . The land rises quickly from the lake shore elevation of 569 feet. Public Square, less than one mile (1.6 km) inland, sits at an elevation of 650 feet (198 m), and Hopkins Airport, 5 miles (8 km) inland from

3128-626: Is a port city , connected to the Atlantic Ocean via the Saint Lawrence Seaway . Its economy relies on diverse sectors that include higher education, manufacturing, financial services, healthcare, and biomedicals. The city serves as the headquarters of the Federal Reserve Bank of Cleveland , as well as several major companies. The GDP for the Greater Cleveland MSA was US$ 138.3 billion in 2022. Combined with

3264-983: Is an advanced form of Inland Northern American English , similar to other Great Lakes cities, but distinctive from the rest of Ohio. In the 19th and early 20th centuries, Cleveland saw a massive influx of immigrants from Ireland, Italy , and the Austro-Hungarian , German , Russian , and Ottoman empires, most of whom were attracted by manufacturing jobs. As a result, Cleveland and Cuyahoga County today have substantial communities of Irish (especially in West Park), Italians (especially in Little Italy), Germans , and several Central -Eastern European ethnicities, including Czechs , Hungarians , Lithuanians , Poles , Romanians , Russians , Rusyns , Slovaks , Ukrainians , and ex- Yugoslav groups, such as Slovenes , Croats and Serbs . The presence of Hungarians within Cleveland proper was, at one time, so great that

3400-403: Is common for quench cracks to form when steel is water quenched, although they may not always be visible. There are many types of heat treating processes available to steel. The most common are annealing , quenching , and tempering . Annealing is the process of heating the steel to a sufficiently high temperature to relieve local internal stresses. It does not create a general softening of

3536-403: Is desirable. To become steel, it must be reprocessed to reduce the carbon to the correct amount, at which point other elements can be added. In the past, steel facilities would cast the raw steel product into ingots which would be stored until use in further refinement processes that resulted in the finished product. In modern facilities, the initial product is close to the final composition and

3672-453: Is distinguishable from wrought iron (now largely obsolete), which may contain a small amount of carbon but large amounts of slag . Iron is commonly found in the Earth's crust in the form of an ore , usually an iron oxide, such as magnetite or hematite . Iron is extracted from iron ore by removing the oxygen through its combination with a preferred chemical partner such as carbon which

3808-408: Is heat treated to contain both a ferritic and martensitic microstructure to produce a formable, high strength steel. Transformation Induced Plasticity (TRIP) steel involves special alloying and heat treatments to stabilize amounts of austenite at room temperature in normally austenite-free low-alloy ferritic steels. By applying strain, the austenite undergoes a phase transition to martensite without

3944-535: Is known as stainless steel . Tungsten slows the formation of cementite , keeping carbon in the iron matrix and allowing martensite to preferentially form at slower quench rates, resulting in high-speed steel . The addition of lead and sulphur decrease grain size, thereby making the steel easier to turn , but also more brittle and prone to corrosion. Such alloys are nevertheless frequently used for components such as nuts, bolts, and washers in applications where toughness and corrosion resistance are not paramount. For

4080-549: Is now exploring renewable energy. The city's two main electrical utilities are FirstEnergy and Cleveland Public Power . Its climate action plan , updated in December 2018, has a 2050 target of 100% renewable power , along with reduction of greenhouse gases to 80% below the 2010 level. In recent decades, Cleveland has been working to address the issue of harmful algal blooms on Lake Erie, fed primarily by agricultural runoff, which have presented new environmental challenges for

4216-691: Is often considered an indicator of economic progress, because of the critical role played by steel in infrastructural and overall economic development . In 1980, there were more than 500,000 U.S. steelworkers. By 2000, the number of steelworkers had fallen to 224,000. The economic boom in China and India caused a massive increase in the demand for steel. Between 2000 and 2005, world steel demand increased by 6%. Since 2000, several Indian and Chinese steel firms have expanded to meet demand, such as Tata Steel (which bought Corus Group in 2007), Baosteel Group and Shagang Group . As of 2017 , though, ArcelorMittal

Samuel Mather - Misplaced Pages Continue

4352-514: Is one of the largest manufacturing industries in the world, but also one of the most energy and greenhouse gas emission intense industries, contributing 8% of global emissions. However, steel is also very reusable: it is one of the world's most-recycled materials, with a recycling rate of over 60% globally . The noun steel originates from the Proto-Germanic adjective * * stahliją or * * stakhlijan 'made of steel', which

4488-463: Is one of the most commonly manufactured materials in the world. Steel is used in buildings, as concrete reinforcing rods, in bridges, infrastructure, tools, ships, trains, cars, bicycles, machines, electrical appliances, furniture, and weapons. Iron is always the main element in steel, but many other elements may be present or added. Stainless steels , which are resistant to corrosion and oxidation , typically need an additional 11% chromium . Iron

4624-551: Is one of the world's most-recycled materials, with a recycling rate of over 60% globally; in the United States alone, over 82,000,000 metric tons (81,000,000 long tons; 90,000,000 short tons) were recycled in the year 2008, for an overall recycling rate of 83%. As more steel is produced than is scrapped, the amount of recycled raw materials is about 40% of the total of steel produced - in 2016, 1,628,000,000 tonnes (1.602 × 10 long tons; 1.795 × 10 short tons) of crude steel

4760-520: Is possible only by reducing iron's ductility. Steel was produced in bloomery furnaces for thousands of years, but its large-scale, industrial use began only after more efficient production methods were devised in the 17th century, with the introduction of the blast furnace and production of crucible steel . This was followed by the Bessemer process in England in the mid-19th century, and then by

4896-434: Is possible to make very high-carbon (and other alloy material) steels, but such are not common. Cast iron is not malleable even when hot, but it can be formed by casting as it has a lower melting point than steel and good castability properties. Certain compositions of cast iron, while retaining the economies of melting and casting, can be heat treated after casting to make malleable iron or ductile iron objects. Steel

5032-400: Is quite ductile , or soft and easily formed. In steel, small amounts of carbon, other elements, and inclusions within the iron act as hardening agents that prevent the movement of dislocations . The carbon in typical steel alloys may contribute up to 2.14% of its weight. Varying the amount of carbon and many other alloying elements, as well as controlling their chemical and physical makeup in

5168-457: Is related to * * stahlaz or * * stahliją 'standing firm'. The carbon content of steel is between 0.02% and 2.14% by weight for plain carbon steel ( iron - carbon alloys ). Too little carbon content leaves (pure) iron quite soft, ductile, and weak. Carbon contents higher than those of steel make a brittle alloy commonly called pig iron . Alloy steel is steel to which other alloying elements have been intentionally added to modify

5304-441: Is the base metal of steel. Depending on the temperature, it can take two crystalline forms (allotropic forms): body-centred cubic and face-centred cubic . The interaction of the allotropes of iron with the alloying elements, primarily carbon, gives steel and cast iron their range of unique properties. In pure iron, the crystal structure has relatively little resistance to the iron atoms slipping past one another, and so pure iron

5440-865: Is the city's central business district, encompassing a wide range of subdistricts, such as the Nine-Twelve District , the Campus District , the Civic Center , East 4th Street , and Playhouse Square . It also historically included the lively Short Vincent entertainment district. Mixed-use areas, such as the Warehouse District and the Superior Arts District , are occupied by industrial and office buildings as well as restaurants, cafes, and bars. The number of condominiums , lofts , and apartments has been on

5576-424: Is the warmest month with a mean temperature of 74.5 °F (23.6 °C), and January, with a mean temperature of 29.1 °F (−1.6 °C), is the coldest. Normal yearly precipitation based on the 30-year average from 1991 to 2020 is 41.03 inches (1,042 mm). The least precipitation occurs on the western side and directly along the lake, and the most occurs in the eastern suburbs. Parts of Geauga County to

Samuel Mather - Misplaced Pages Continue

5712-547: Is the world's largest steel producer . In 2005, the British Geological Survey stated China was the top steel producer with about one-third of the world share; Japan , Russia , and the United States were second, third, and fourth, respectively, according to the survey. The large production capacity of steel results also in a significant amount of carbon dioxide emissions inherent related to

5848-498: Is then lost to the atmosphere as carbon dioxide. This process, known as smelting , was first applied to metals with lower melting points, such as tin , which melts at about 250 °C (482 °F), and copper , which melts at about 1,100 °C (2,010 °F), and the combination, bronze, which has a melting point lower than 1,083 °C (1,981 °F). In comparison, cast iron melts at about 1,375 °C (2,507 °F). Small quantities of iron were smelted in ancient times, in

5984-764: The Akron MSA , the eight-county Cleveland–Akron metropolitan economy was $ 176 billion in 2022, the largest in Ohio. Designated as a global city by the Globalization and World Cities Research Network , Cleveland is home to several major cultural institutions, including the Cleveland Museum of Art , the Cleveland Museum of Natural History , the Cleveland Orchestra , the Cleveland Public Library , Playhouse Square , and

6120-452: The Cfa humid subtropical climate . Summers are hot and humid, while winters are cold and snowy. East of the mouth of the Cuyahoga, the land elevation rises rapidly in the south. Together with the prevailing winds off Lake Erie, this feature is the principal contributor to the lake-effect snow that is typical in Cleveland (especially on the city's East Side) from mid-November until the surface of

6256-579: The First World War he raised US$ 4.5 million for the Red Cross and financed the sending of a unit of Lakeside Hospital to France. Mather also served as a trustee of Western Reserve University for forty-five years, contributing to the provision of residential accommodation and additional classroom facilities benefiting women students. Other gifts included the installation of Anne's Tablet on Mackinac Island, Michigan . At Kenyon College , Mather

6392-569: The Glenn Research Center in Cleveland. Jones Day , one of the largest law firms in the U.S., was founded in Cleveland in 1893. Healthcare plays a major role in Cleveland's economy. The city's "Big Three" hospital systems are the Cleveland Clinic , University Hospitals , and MetroHealth . The Cleveland Clinic is the largest private employer in the state of Ohio, with a workforce of over 55,000 as of 2022 . It carries

6528-655: The Golconda area in Andhra Pradesh and Karnataka , regions of India , as well as in Samanalawewa and Dehigaha Alakanda, regions of Sri Lanka . This came to be known as wootz steel , produced in South India by about the sixth century BC and exported globally. The steel technology existed prior to 326 BC in the region as they are mentioned in literature of Sangam Tamil , Arabic, and Latin as

6664-680: The Great Lakes Science Center . Although the city emerged from default in 1987, it later suffered from the impact of the subprime mortgage crisis and the Great Recession . Nevertheless, by the turn of the 21st century, Cleveland succeeded in developing a more diversified economy and gained a national reputation as a center for healthcare and the arts. The city's downtown and several neighborhoods have experienced significant population growth since 2010, while overall population decline has slowed. Challenges remain for

6800-615: The Marquette Iron Range . Pickands Mather became one of the four major iron ore companies in the United States through the operation of extensive mines in the Lake Superior region. By providing ample access to iron ore, steel , and shipping, Mather became increasingly wealthy through the profits reaped by the company and through the inheritance left to him from his father. Mather gave generously to educational and health institutions throughout his life. During

6936-712: The Rock and Roll Hall of Fame , as well as Case Western Reserve University . Known as " The Forest City " among many other nicknames , Cleveland serves as the center of the Cleveland Metroparks nature reserve system. The city's major league professional sports teams include the Cleveland Browns ( football ; NFL ), the Cleveland Cavaliers (basketball; NBA ), and the Cleveland Guardians (baseball; MLB ). Cleveland

SECTION 50

#1732800835907

7072-697: The Union during the American Civil War . Decades later, in July 1894, the wartime contributions of those serving the Union from Cleveland and Cuyahoga County would be honored with the Soldiers' and Sailors' Monument on Public Square. The Civil War vaulted Cleveland into the first rank of American manufacturing cities and fueled unprecedented growth. Its prime geographic location as a transportation hub on

7208-599: The cementation process was described in a treatise published in Prague in 1574 and was in use in Nuremberg from 1601. A similar process for case hardening armour and files was described in a book published in Naples in 1589. The process was introduced to England in about 1614 and used to produce such steel by Sir Basil Brooke at Coalbrookdale during the 1610s. The raw material for this process were bars of iron. During

7344-729: The former USSR , Southeast Europe (especially Albania ), the Middle East, East Asia, and Latin America. In the 2010s, the immigrant population of Cleveland and Cuyahoga County began to see significant growth, becoming a major center for immigration in the Great Lakes region. A 2019 study found Cleveland to be the city with the shortest average processing time in the nation for immigrants to become U.S. citizens . The city's annual One World Day in Rockefeller Park includes

7480-554: The open-hearth furnace . With the invention of the Bessemer process, a new era of mass-produced steel began. Mild steel replaced wrought iron . The German states were the major steel producers in Europe in the 19th century. American steel production was centred in Pittsburgh , Bethlehem, Pennsylvania , and Cleveland until the late 20th century. Currently, world steel production is centered in China, which produced 54% of

7616-445: The 17th century, it was realized that the best steel came from oregrounds iron of a region north of Stockholm , Sweden. This was still the usual raw material source in the 19th century, almost as long as the process was used. Crucible steel is steel that has been melted in a crucible rather than having been forged , with the result that it is more homogeneous. Most previous furnaces could not reach high enough temperatures to melt

7752-475: The 17th century, the first step in European steel production has been the smelting of iron ore into pig iron in a blast furnace . Originally employing charcoal, modern methods use coke , which has proven more economical. In these processes, pig iron made from raw iron ore was refined (fined) in a finery forge to produce bar iron , which was then used in steel-making. The production of steel by

7888-646: The 1832 completion of the Ohio and Erie Canal . This key link between the Ohio River and the Great Lakes connected Cleveland to the Atlantic Ocean via the Erie Canal and Hudson River, and later via the Saint Lawrence Seaway . The town's growth continued with added railroad links . In 1836, Cleveland, then only on the eastern banks of the Cuyahoga, was officially incorporated as a city, and John W. Willey

8024-405: The 1960s, Cleveland's economy began to slow down, and residents increasingly sought new housing in the suburbs, reflecting the national trends of suburban growth following federally subsidized highways. Industrial restructuring , particularly in the steel and automotive industries, resulted in the loss of numerous jobs in Cleveland and the region, and the city suffered economically. The burning of

8160-608: The Arabs from Persia, who took it from India. It was originally created from several different materials including various trace elements , apparently ultimately from the writings of Zosimos of Panopolis . In 327 BC, Alexander the Great was rewarded by the defeated King Porus , not with gold or silver but with 30 pounds of steel. A recent study has speculated that carbon nanotubes were included in its structure, which might explain some of its legendary qualities, though, given

8296-649: The Cleveland Transit System, the predecessor to the Greater Cleveland Regional Transit Authority . After the war, Cleveland initially experienced an economic boom , and businesses declared the city to be the "best location in the nation". In 1949, the city was named an All-America City for the first time, and in 1950, its population reached 914,808. In sports, the Indians won the 1948 World Series ,

SECTION 60

#1732800835907

8432-487: The Cuyahoga River in June 1969 brought national attention to the issue of industrial pollution in Cleveland and served as a catalyst for the American environmental movement . Housing discrimination and redlining against African Americans led to racial unrest in Cleveland and numerous other Northern U.S. cities. In Cleveland, the Hough riots erupted from July 18 to 24, 1966, and the Glenville Shootout took place on July 23, 1968. In November 1967, Cleveland became

8568-411: The East and West Sides, while Broadway–Slavic Village is sometimes referred to as the South Side. Several neighborhoods have begun to attract the return of the middle class that left the city for the suburbs in the 1960s and 1970s. These neighborhoods are on both the West Side (Ohio City, Tremont, Detroit–Shoreway, and Edgewater) and the East Side (Collinwood, Hough, Fairfax, and Little Italy). Much of

8704-434: The Great Lakes played an important role in its development as an industrial and commercial center. In 1870, John D. Rockefeller founded Standard Oil in Cleveland, and in 1885, he moved its headquarters to New York City, which had become a center of finance and business. Cleveland's economic growth and industrial jobs attracted large waves of immigrants from Southern and Eastern Europe as well as Ireland . Urban growth

8840-407: The Linz-Donawitz process of basic oxygen steelmaking (BOS), developed in 1952, and other oxygen steel making methods. Basic oxygen steelmaking is superior to previous steelmaking methods because the oxygen pumped into the furnace limited impurities, primarily nitrogen, that previously had entered from the air used, and because, with respect to the open hearth process, the same quantity of steel from

8976-534: The South. Between 1910 and 1970, the black population of Cleveland, largely concentrated on the city's East Side, increased significantly as a result of the First and Second Great Migrations . Cleveland's Latino community consists primarily of Puerto Ricans , as well as smaller numbers of immigrants from Mexico, Cuba , the Dominican Republic , South and Central America, and Spain. The city's Asian community, centered on historical Asiatown, consists of Chinese , Koreans , Vietnamese , and other groups. Additionally,

9112-503: The U.S. during the Battle of Lake Erie in the War of 1812 . Locals adopted Commodore Oliver Hazard Perry as a civic hero and erected a monument in his honor decades later. Largely through the efforts of the settlement's first lawyer Alfred Kelley , the village of Cleveland was incorporated on December 23, 1814. In spite of the nearby swampy lowlands and harsh winters, the town's waterfront location proved to be an advantage, giving it access to Great Lakes trade. It grew rapidly after

9248-614: The Western Reserve in 1843 at the age of 26, and in 1847 founded the Cleveland Iron Company . Samuel had one sister, Katherine Livingston Mather (born September 1853). His mother died two months after giving birth to Katherine, and his father then married Elizabeth L. Gwinn in June 1856. Mather's half-brother, William Gwinn Mather, was born in 1857. Mather was educated in Cleveland's public schools, attending Cleveland High School before transferring to and graduating from St. Mark's School in Southborough , Massachusetts in 1869. Mather intended to attend Harvard University , but while working as

9384-436: The austenite grain boundaries until the percentage of carbon in the grains has decreased to the eutectoid composition (0.8% carbon), at which point the pearlite structure forms. For steels that have less than 0.8% carbon (hypoeutectoid), ferrite will first form within the grains until the remaining composition rises to 0.8% of carbon, at which point the pearlite structure will form. No large inclusions of cementite will form at

9520-471: The austenite is for it to precipitate out of solution as cementite , leaving behind a surrounding phase of BCC iron called ferrite with a small percentage of carbon in solution. The two, cementite and ferrite, precipitate simultaneously producing a layered structure called pearlite , named for its resemblance to mother of pearl . In a hypereutectoid composition (greater than 0.8% carbon), the carbon will first precipitate out as large inclusions of cementite at

9656-494: The boundaries in hypoeutectoid steel. The above assumes that the cooling process is very slow, allowing enough time for the carbon to migrate. As the rate of cooling is increased the carbon will have less time to migrate to form carbide at the grain boundaries but will have increasingly large amounts of pearlite of a finer and finer structure within the grains; hence the carbide is more widely dispersed and acts to prevent slip of defects within those grains, resulting in hardening of

9792-574: The broader strike wave that swept the U.S. that year. Cleveland's population continued to grow throughout the Roaring Twenties . The decade saw the establishment of the city's Playhouse Square , and the rise of the risqué Short Vincent . The Bal-Masque balls of the avant-garde Kokoon Arts Club scandalized the city. Jazz came to prominence in Cleveland during this period. Prohibition first took effect in Ohio in May 1919 (although it

9928-521: The characteristics of steel. Common alloying elements include: manganese , nickel , chromium , molybdenum , boron , titanium , vanadium , tungsten , cobalt , and niobium . Additional elements, most frequently considered undesirable, are also important in steel: phosphorus , sulphur , silicon , and traces of oxygen , nitrogen , and copper . Plain carbon-iron alloys with a higher than 2.1% carbon content are known as cast iron . With modern steelmaking techniques such as powder metal forming, it

10064-435: The city and for northern Ohio. At the 2020 census, there were 372,624 people and 170,549 households in Cleveland. The population density was 4,901.51 inhabitants per square mile (1,892.5/km ). The median household income was $ 30,907 and the per capita income was $ 21,223. 32.7% of the population was living below the poverty line. Of the city's population over the age of 25, 17.5% held a bachelor's degree or higher, and 80.8% had

10200-450: The city and the county have significant communities of Albanians , Arabs (especially Lebanese , Syrians , and Palestinians ), Armenians , French , Greeks , Iranians , Scots , Turks , and West Indians . A 2020 analysis found Cleveland to be the most ethnically and racially diverse major city in Ohio. The influx of immigrants in the 19th and early 20th centuries drastically transformed Cleveland's religious landscape. From

10336-439: The city and the county include Aleris , American Greetings , Applied Industrial Technologies , Eaton , Forest City Realty Trust , Heinen's Fine Foods, Hyster-Yale Materials Handling , Lincoln Electric , Medical Mutual of Ohio , Moen Incorporated , NACCO Industries , Nordson Corporation , OM Group , Swagelok , Kirby Company , Things Remembered , Third Federal S&L , TransDigm Group , and Vitamix . NASA maintains

10472-594: The city ascends into the Heights on the east, where the region known as the " Snow Belt " begins. Extending from the city's East Side and its suburbs, the Snow Belt reaches up the Lake Erie shore as far as Buffalo . The all-time record high in Cleveland of 104 °F (40 °C) was established on June 25, 1988, and the all-time record low of −20 °F (−29 °C) was set on January 19, 1994. On average, July

10608-546: The city boasted the highest concentration of Hungarians in the world outside of Budapest . Cleveland has a long-established Jewish community , historically centered on the East Side neighborhoods of Glenville and Kinsman, but now mostly concentrated in East Side suburbs such as Cleveland Heights and Beachwood , location of the Maltz Museum of Jewish Heritage . The availability of jobs attracted African Americans from

10744-645: The city from Santa Monica, California in the Women's Air Derby . The Van Sweringen brothers commenced construction of the Terminal Tower skyscraper in 1926 and oversaw it to completion in 1927. By the time the building was dedicated as part of Cleveland Union Terminal in 1930, the city had a population of over 900,000. Cleveland was hit hard by the Wall Street Crash of 1929 and the subsequent Great Depression . A center of union activity ,

10880-527: The city saw significant labor struggles in this period, including strikes by workers against Fisher Body in 1936 and against Republic Steel in 1937. The city was also aided by major federal works projects sponsored by President Franklin D. Roosevelt 's New Deal . In commemoration of the centennial of Cleveland's incorporation as a city, the Great Lakes Exposition debuted in June 1936 at

11016-513: The city was named. The city's location on the river and the lake shore allowed it to grow into a major commercial and industrial metropolis by the late 19th century, attracting large numbers of immigrants and migrants . It was among the top 10 largest U.S. cities by population for much of the 20th century, a period that saw the development of the city's cultural institutions. By the 1960s, Cleveland's economy began to slow down as manufacturing declined and suburbanization occurred. Cleveland

11152-522: The city's North Coast Harbor , along the Lake Erie shore north of downtown. Conceived by Cleveland's business leaders as a way to revitalize the city during the Depression, it drew four million visitors in its first season, and seven million by the end of its second and final season in September 1937. On December 7, 1941, Imperial Japan attacked Pearl Harbor and declared war on the U.S. Two of

11288-418: The city's west side is led by president and CEO Christine Alexander-Rager. Formerly known as City Hospital, it operates one of two Level I trauma centers in the city, and has various locations throughout Greater Cleveland. In 2013, Cleveland's Global Center for Health Innovation opened with 235,000 square feet (21,800 m ) of display space for healthcare companies across the world. To take advantage of

11424-426: The city, with improvement of city schools, economic development of neighborhoods, and continued efforts to tackle poverty, homelessness , and urban blight being top municipal priorities. According to the U.S. Census Bureau , the city has a total area of 82.47 square miles (213.60 km ), of which 77.70 square miles (201.24 km ) is land and 4.77 square miles (12.35 km ) is water. The shore of Lake Erie

11560-422: The desired properties. Nickel and manganese in steel add to its tensile strength and make the austenite form of the iron-carbon solution more stable, chromium increases hardness and melting temperature, and vanadium also increases hardness while making it less prone to metal fatigue . To inhibit corrosion, at least 11% chromium can be added to steel so that a hard oxide forms on the metal surface; this

11696-525: The distinction of being one of the best hospital systems in the world. The clinic is led by Croatian-born president and CEO Tomislav Mihaljevic and it is affiliated with Case Western Reserve University School of Medicine . University Hospitals includes the University Hospitals Cleveland Medical Center and its Rainbow Babies & Children's Hospital . Cliff Megerian serves as that system's CEO. MetroHealth on

11832-416: The east receive over 44 inches (1,100 mm) of liquid precipitation annually. With its extensive cleanup of its Lake Erie shore and the Cuyahoga River, Cleveland has been recognized by national media as an environmental success story and a national leader in environmental protection. Since the city's industrialization, the Cuyahoga River had become so affected by industrial pollution that it "caught fire"

11968-413: The final steel (either as solute elements, or as precipitated phases), impedes the movement of the dislocations that make pure iron ductile, and thus controls and enhances its qualities. These qualities include the hardness , quenching behaviour , need for annealing , tempering behaviour , yield strength , and tensile strength of the resulting steel. The increase in steel's strength compared to pure iron

12104-648: The finest steel in the world exported to the Roman, Egyptian, Chinese and Arab worlds at that time – what they called Seric Iron . A 200 BC Tamil trade guild in Tissamaharama , in the South East of Sri Lanka, brought with them some of the oldest iron and steel artifacts and production processes to the island from the classical period . The Chinese and locals in Anuradhapura , Sri Lanka had also adopted

12240-469: The first major American city since the Great Depression to enter into a financial default on federal loans. The national recession of the early 1980s "further eroded the city's traditional economic base." While unemployment during the period peaked in 1983, Cleveland's rate of 13.8% was higher than the national average due to the closure of several steel production centers. The city began

12376-425: The first major American city to elect an African American mayor, Carl B. Stokes , who served from 1968 to 1971 and played an instrumental role in restoring the Cuyahoga River. During the 1970s, Cleveland became known as "Bomb City U.S.A." due to several bombings that shook the city, mostly due to organized crime rivalries. In December 1978, during the turbulent tenure of Dennis Kucinich as mayor, Cleveland became

12512-513: The form of charcoal) in a crucible, was produced in Merv by the 9th to 10th century AD. In the 11th century, there is evidence of the production of steel in Song China using two techniques: a "berganesque" method that produced inferior, inhomogeneous steel, and a precursor to the modern Bessemer process that used partial decarburization via repeated forging under a cold blast . Since

12648-549: The golden age in Downtown Cleveland retail, centered on major department stores Higbee's , Bailey's, the May Company , Taylor's , Halle's , and Sterling Lindner Davis , which collectively represented one of the largest and most fashionable shopping districts in the country, often compared to New York's Fifth Avenue . In 1929, Cleveland hosted the first of many National Air Races , and Amelia Earhart flew to

12784-408: The growth has been spurred on by attracting creative class members, which has facilitated new residential development and the transformation of old industrial buildings into loft spaces for artists. Typical of the Great Lakes region , Cleveland exhibits a continental climate with four distinct seasons, which lies in the humid continental ( Köppen Dfa ) zone. The climate is transitional with

12920-599: The hardenability of thick sections. High strength low alloy steel has small additions (usually < 2% by weight) of other elements, typically 1.5% manganese, to provide additional strength for a modest price increase. Recent corporate average fuel economy (CAFE) regulations have given rise to a new variety of steel known as Advanced High Strength Steel (AHSS). This material is both strong and ductile so that vehicle structures can maintain their current safety levels while using less material. There are several commercially available grades of AHSS, such as dual-phase steel , which

13056-614: The hockey team, the Barons , became champions of the American Hockey League, and the Browns dominated professional football in the 1950s. As a result, along with track and boxing champions produced, Cleveland was declared the "City of Champions" in sports at this time. Additionally, the 1950s saw the rising popularity of a new music genre that local WJW (AM) disc jockey Alan Freed dubbed " rock and roll ". However, by

13192-644: The increase since 2000 and especially 2010, reflecting downtown's growing population. Clevelanders geographically define themselves in terms of whether they live on the east or west side of the Cuyahoga River. The East Side includes the neighborhoods of Buckeye–Shaker , Buckeye–Woodhill , Central , Collinwood (including Nottingham ), Euclid–Green , Fairfax , Glenville , Goodrich–Kirtland Park (including Asiatown ), Hough , Kinsman , Lee–Miles (including Lee–Harvard and Lee–Seville), Mount Pleasant , St. Clair–Superior , Union–Miles Park , and University Circle (including Little Italy ). The West Side includes

13328-484: The lake freezes, usually in late January or early February. The lake effect causes a relative differential in geographical snowfall totals across the city. On the city's far West Side, the Hopkins neighborhood only reached 100 inches (254 cm) of snowfall in a season three times since record-keeping for snow began in 1893. By contrast, seasonal totals approaching or exceeding 100 inches (254 cm) are not uncommon as

13464-480: The lake, is at an elevation of 791 feet (241 m). Cleveland borders several inner-ring and streetcar suburbs . To the west, it borders Lakewood , Rocky River , and Fairview Park , and to the east, it borders Shaker Heights , Cleveland Heights , South Euclid , and East Cleveland . To the southwest, it borders Linndale , Brooklyn , Parma , and Brook Park . To the south, the city borders Newburgh Heights , Cuyahoga Heights , and Brooklyn Heights and to

13600-439: The main production route. At the end of 2008, the steel industry faced a sharp downturn that led to many cut-backs. In 2021, it was estimated that around 7% of the global greenhouse gas emissions resulted from the steel industry. Reduction of these emissions are expected to come from a shift in the main production route using cokes, more recycling of steel and the application of carbon capture and storage technology. Steel

13736-450: The most part, however, p-block elements such as sulphur, nitrogen , phosphorus , and lead are considered contaminants that make steel more brittle and are therefore removed from steel during the melting processing. The density of steel varies based on the alloying constituents but usually ranges between 7,750 and 8,050 kg/m (484 and 503 lb/cu ft), or 7.75 and 8.05 g/cm (4.48 and 4.65 oz/cu in). Even in

13872-456: The neighborhoods of Brooklyn Centre , Clark–Fulton , Cudell , Detroit–Shoreway , Edgewater , Ohio City , Old Brooklyn , Stockyards , Tremont (including Duck Island ), West Boulevard , and the four neighborhoods colloquially known as West Park : Kamm's Corners , Jefferson , Bellaire–Puritas , and Hopkins . The Cuyahoga Valley neighborhood (including the Flats ) is situated between

14008-634: The open Cleveland Mall and share a common neoclassical architecture . They were built in the early 20th century as the result of the 1903 Group Plan. They constitute one of the most complete examples of City Beautiful design in the U.S. Completed in 1927 and dedicated in 1930 as part of the Cleveland Union Terminal complex, the Terminal Tower was the tallest building in North America outside New York City until 1964 and

14144-436: The oxidation rate of iron increases rapidly beyond 800 °C (1,470 °F), it is important that smelting take place in a low-oxygen environment. Smelting, using carbon to reduce iron oxides, results in an alloy ( pig iron ) that retains too much carbon to be called steel. The excess carbon and other impurities are removed in a subsequent step. Other materials are often added to the iron/carbon mixture to produce steel with

14280-449: The product but only locally relieves strains and stresses locked up within the material. Annealing goes through three phases: recovery , recrystallization , and grain growth . The temperature required to anneal a particular steel depends on the type of annealing to be achieved and the alloying constituents. Quenching involves heating the steel to create the austenite phase then quenching it in water or oil . This rapid cooling results in

14416-759: The production methods of creating wootz steel from the Chera Dynasty Tamils of South India by the 5th century AD. In Sri Lanka, this early steel-making method employed a unique wind furnace, driven by the monsoon winds, capable of producing high-carbon steel. Since the technology was acquired from the Tamilians from South India, the origin of steel technology in India can be conservatively estimated at 400–500 BC. The manufacture of wootz steel and Damascus steel , famous for its durability and ability to hold an edge, may have been taken by

14552-550: The proximity of universities and other medical centers in Cleveland, the Veterans Administration moved the region's VA hospital from suburban Brecksville to a new facility in University Circle. Steel Steel is an alloy of iron and carbon with improved strength and fracture resistance compared to other forms of iron. Because of its high tensile strength and low cost, steel

14688-552: The rank of colonel in the 124th Ohio Volunteer Infantry during the American Civil War . In 1867, he moved to Marquette, Michigan , where he opened a hardware store selling tools and supplies to iron mining companies. He opened a fuel coal supply business three years later. He was elected mayor of Marquette in 1875, and five years later formed the Taylor Iron Co. (an iron mining concern) with Jay C. Morse. After Pickands' wife died in 1882, he moved to Cleveland. Jay C. Morse

14824-544: The rural South arrived in Cleveland (among other Northeastern and Midwestern cities) as part of the Great Migration for jobs, constitutional rights, and relief from racial discrimination . By 1920, the year in which the Cleveland Indians won their first World Series championship , Cleveland had grown into a densely-populated metropolis of 796,841, making it the fifth-largest city in the nation, with

14960-707: The school was $ 100,000 in 1922 for the building of Leonard Hall. (He made this contribution anonymously.) The Old Main Library at Rikkyo University , Tokyo was financed by Mather in 1918. The library was named in honor of his father Samuel Livingston Mather, who was a long time supporter of overseas mission activities of the Episcopal Church . Mather suffered from heart problems at the end of his life. His heart began to fail on October 10, 1931, and he died of heart disease on October 18. Mather left $ 100,000 in his will to Kenyon College. The Samuel Mather Science Hall

15096-477: The solid-state, by heating the ore in a charcoal fire and then welding the clumps together with a hammer and in the process squeezing out the impurities. With care, the carbon content could be controlled by moving it around in the fire. Unlike copper and tin, liquid or solid iron dissolves carbon quite readily. All of these temperatures could be reached with ancient methods used since the Bronze Age . Since

15232-495: The southeast, it borders Warrensville Heights , Maple Heights , and Garfield Heights . To the northeast, along the shore of Lake Erie, Cleveland borders Bratenahl and Euclid . Cleveland's downtown architecture is diverse. Many of the city's government and civic buildings, including City Hall , the Cuyahoga County Courthouse , the Cleveland Public Library , and Public Auditorium , are clustered around

15368-401: The steel. At the very high cooling rates produced by quenching, the carbon has no time to migrate but is locked within the face-centred austenite and forms martensite . Martensite is a highly strained and stressed, supersaturated form of carbon and iron and is exceedingly hard but brittle. Depending on the carbon content, the martensitic phase takes different forms. Below 0.2% carbon, it takes on

15504-561: The steel. The early modern crucible steel industry resulted from the invention of Benjamin Huntsman in the 1740s. Blister steel (made as above) was melted in a crucible or in a furnace, and cast (usually) into ingots. The modern era in steelmaking began with the introduction of Henry Bessemer 's process in 1855, the raw material for which was pig iron. His method let him produce steel in large quantities cheaply, thus mild steel came to be used for most purposes for which wrought iron

15640-472: The tallest in the city until 1991. It is a prototypical Beaux-Arts skyscraper. The two other major skyscrapers on Public Square, Key Tower (the tallest building in Ohio) and 200 Public Square, combine elements of Art Deco architecture with postmodern designs. Running east from Public Square through University Circle is Euclid Avenue , which was known as "Millionaires' Row" for its prestige and elegance as

15776-561: The technology of that time, such qualities were produced by chance rather than by design. Natural wind was used where the soil containing iron was heated by the use of wood. The ancient Sinhalese managed to extract a ton of steel for every 2 tons of soil, a remarkable feat at the time. One such furnace was found in Samanalawewa and archaeologists were able to produce steel as the ancients did. Crucible steel , formed by slowly heating and cooling pure iron and carbon (typically in

15912-419: The time as the sixth-largest U.S. city. Its automotive companies included Peerless , Chandler , and Winton , maker of the first car driven across the U.S. Other manufacturing industries in Cleveland included steam cars produced by White and electric cars produced by Baker . The city counted major Progressive Era politicians among its leaders, most prominently the populist Mayor Tom L. Johnson , who

16048-525: The upper carbon content of steel, beyond which is cast iron. When carbon moves out of solution with iron, it forms a very hard, but brittle material called cementite (Fe 3 C). When steels with exactly 0.8% carbon (known as a eutectoid steel), are cooled, the austenitic phase (FCC) of the mixture attempts to revert to the ferrite phase (BCC). The carbon no longer fits within the FCC austenite structure, resulting in an excess of carbon. One way for carbon to leave

16184-415: The victims of the attack were Cleveland natives – Rear Admiral Isaac C. Kidd and ensign William Halloran. The attack signaled America's entry into World War II . A major hub of the " Arsenal of Democracy ", Cleveland under Mayor Frank Lausche contributed massively to the U.S. war effort as the fifth largest manufacturing center in the nation. During his tenure, Lausche also oversaw the establishment of

16320-428: The world's steel in 2023. Further refinements in the process, such as basic oxygen steelmaking (BOS), largely replaced earlier methods by further lowering the cost of production and increasing the quality of the final product. Today more than 1.6 billion tons of steel is produced annually. Modern steel is generally identified by various grades defined by assorted standards organizations . The modern steel industry

16456-611: Was Clara Louise Stone, who married John Hay (1838-1905). He had been Abraham Lincoln's secretary and later became Secretary of State during the McKinley and Theodore Roosevelt administrations. Samuel and Flora spent nearly two years traveling in Europe before returning to Cleveland. The couple had four children: Samuel Livingston Mather (born 1882), Amasa Stone Mather (born 1884), Constance (1889), and Philip Richard Mather (1894). In 1883, Mather co-founded Pickands Mather and Company with James Pickands and Jay C. Morse. Pickands had risen to

16592-629: Was a shipping agent for the Cleveland Iron Mining Company in Marquette. He invested widely in Michigan iron mines, and by 1882 was a wealthy man ready to form his own company. Determined to make his own fortune and impress his father-in-law after his return from Europe, Mather sought out business partners. Pickands Mather and Company was formed in 1883, dealing in iron ore and pig iron , and mining iron ore from two mines in

16728-428: Was accompanied by significant strikes and labor unrest, as workers demanded better wages and working conditions . Between 1881 and 1886, 70 to 80% of strikes were successful in improving labor conditions in Cleveland. The Cleveland Streetcar Strike of 1899 was one of the more violent instances of labor strife in the city during this period. By 1910, Cleveland had become known as the "Sixth City" due to its status at

16864-516: Was built in Mather's name at the request of his business associate Henry G. Dalton, who gave money to Kenyon for the construction of the building. Seven Great Lakes merchant ships have been named in Mather's honor. Perhaps his greatest legacy is the Mather Mansion at Cleveland State University which has survived the wrecking ball many times. Cleveland, Ohio Cleveland is

17000-591: Was completed in 1923 by the Cleveland architectural firm Walker and Weeks . The headquarters of the Federal Reserve System's Fourth District, the bank employs 1,000 people and maintains branch offices in Cincinnati and Pittsburgh . Cleveland and Cuyahoga County are home to Fortune 500 companies Cleveland-Cliffs , Progressive , Sherwin-Williams , Parker-Hannifin , KeyCorp , and Travel Centers of America . Other large companies based in

17136-718: Was developed in Southern India and Sri Lanka in the 1st millennium BCE. Metal production sites in Sri Lanka employed wind furnaces driven by the monsoon winds, capable of producing high-carbon steel. Large-scale wootz steel production in India using crucibles occurred by the sixth century BC, the pioneering precursor to modern steel production and metallurgy. High-carbon steel was produced in Britain at Broxmouth Hillfort from 490–375 BC, and ultrahigh-carbon steel

17272-556: Was elected its first mayor. That same year, it nearly erupted into open warfare with neighboring Ohio City over a bridge connecting the two communities. Ohio City remained an independent municipality until its annexation by Cleveland in 1854. A center of abolitionist activity, Cleveland (code-named "Station Hope") was a major stop on the Underground Railroad for escaped African American slaves en route to Canada. The city also served as an important center for

17408-733: Was established on July 22, 1796, by surveyors of the Connecticut Land Company when they laid out Connecticut 's Western Reserve into townships and a capital city. They named the settlement "Cleaveland" after their leader, General Moses Cleaveland , a veteran of the American Revolutionary War . Cleaveland oversaw the New England –style design of the plan for what would become the modern downtown area, centered on Public Square , before returning to Connecticut, never again to visit Ohio. The town's name

17544-509: Was formerly used. The Gilchrist-Thomas process (or basic Bessemer process ) was an improvement to the Bessemer process, made by lining the converter with a basic material to remove phosphorus. Another 19th-century steelmaking process was the Siemens-Martin process , which complemented the Bessemer process. It consisted of co-melting bar iron (or steel scrap) with pig iron. These methods of steel production were rendered obsolete by

17680-403: Was known for decades for his generous financial gifts and management of the college's financial affairs. Mather was a trustee to Kenyon for forty-three years; before his death, Mather was the oldest living member of Kenyon's Board of Trustees. According to Kenyon College, Mather donated over a half-million dollars to the school while he served as a trustee there. His largest single financial gift to

17816-589: Was not well-enforced in Cleveland), became law with the Volstead Act in 1920, and was eventually repealed nationally by Congress in 1933. The ban on alcohol led to the rise of speakeasies throughout the city and organized crime gangs, such as the Mayfield Road Mob , who smuggled bootleg liquor across Lake Erie from Canada into Cleveland. The era of the flapper marked the beginning of

17952-407: Was often shortened to "Cleveland", even by Cleaveland's original surveyors. A common myth emerged that the spelling was altered by The Cleveland Advertiser in order to fit the name on the newspaper's masthead . The first permanent European settler in Cleveland was Lorenzo Carter , who built a cabin on the banks of the Cuyahoga River. The emerging community served as an important supply post for

18088-460: Was one of the original founders and shareholders in the Connecticut Land Company , which bought the Connecticut Western Reserve (which constituted what later became northeastern Ohio) in 1792. His grandmother Catherine Livingston (1787-1855) descended from Richard Livingston ("the Younger") (1663-1725), mayor of Albany NY from 1710-1719. His father, Samuel Livingston Mather (1817-1890) emigrated to

18224-438: Was produced globally, with 630,000,000 tonnes (620,000,000 long tons; 690,000,000 short tons) recycled. Modern steels are made with varying combinations of alloy metals to fulfil many purposes. Carbon steel , composed simply of iron and carbon, accounts for 90% of steel production. Low alloy steel is alloyed with other elements, usually molybdenum , manganese, chromium, or nickel, in amounts of up to 10% by weight to improve

18360-757: Was produced in the Netherlands from the 2nd-4th centuries AD. The Roman author Horace identifies steel weapons such as the falcata in the Iberian Peninsula , while Noric steel was used by the Roman military . The Chinese of the Warring States period (403–221 BC) had quench-hardened steel, while Chinese of the Han dynasty (202 BC—AD 220) created steel by melting together wrought iron with cast iron, thus producing

18496-577: Was responsible for the development of the Cleveland Mall Plan . The era of the City Beautiful movement in Cleveland architecture saw wealthy patrons support the establishment of the city's major cultural institutions. The most prominent among them were the Cleveland Museum of Art , which opened in 1916, and the Cleveland Orchestra , established in 1918. In addition to the large immigrant population, African American migrants from

#906093