Chicago, Illinois

Chicago is the principal setting of each of the television shows

Chicago is the third most populous city in the United States. With over 2.7 million residents, it is the most populous city in the state of Illinois and the Midwest. The Chicago metropolitan area, often referred to as Chicago-land, has nearly 10 million people and is the third-largest in the U.S. Chicago is the seat of Cook County.

Chicago was incorporated as a city in 1837, near a portage between the Great Lakes and the Mississippi River watershed, and grew rapidly in the mid-nineteenth century. The city is an international hub for finance, commerce, industry, technology, telecommunications, and transportation: O'Hare International Airport is the busiest airport in the world; it also has the largest number of U.S. highways and railroad freight. In 2012, Chicago was listed as an alpha global city by the Globalization and World Cities Research Network, and ranked seventh in the world in the 2014 Global Cities Index. As of 2014, Chicago had the third largest gross metropolitan product in the United States at US$610.5 billion.

In 2014, Chicago hosted 50.2 million international and domestic visitors. Chicago's culture includes the visual arts, novels, film, theater, especially improvisational comedy, and music, particularly jazz, blues, soul, gospel and house music. The city has many nicknames, the best-known being the Windy City. Chicago has professional sports teams in each of the major professional leagues.

Beginnings
The name "Chicago" is derived from a French rendering of the Native American word shikaakwa, translated by some sources as "wild leek" or "wild onion" or "wild garlic", from the Miami-Illinois language. The first known reference to the site of the current city of Chicago as "Checagou" was by Robert de LaSalle around 1679 in a memoir. Henri Joutel, in his journal of 1688, noted that the wild garlic, called "chicagoua", grew abundantly in the area. Other sources say place of the skunk.

In the mid-18th century, the area was inhabited by a Native American tribe known as the Potawatomi, who had taken the place of the Miami and Sauk and Fox peoples. The first known non-indigenous permanent settler in Chicago was Jean Baptiste Point du Sable. Du Sable was of African and French descent and arrived in the 1780s. He is commonly known as the "Founder of Chicago."

In 1795, following the Northwest Indian War, native tribes, in accordance with the Treaty of Greenville, turned over an area that was to be part of Chicago to the United States for a military post. The United States Army built Fort Dearborn in 1803, but it was destroyed in the Battle of Fort Dearborn during the War of 1812, and was later rebuilt. The Ottawa, Ojibwe, and Potawatomi tribes had ceded additional land to the United States in the 1816 Treaty of St. Louis. The Potawatomi were forcibly removed from their land after the Treaty of Chicago in 1833.

Founding and 19th century
On August 12, 1833, the Town of Chicago was organized with a population of about 200. Within seven years it grew to more than 4,000 people. On June 15, 1835, the first public land sales commenced with Edmund Dick Taylor as U.S. receiver of public moneys. The City of Chicago was incorporated on Saturday, March 4, 1837 and for several decades was the fastest growing city in the world.

As the site of the Chicago Portage, the city became an important transportation hub between the eastern and western United States. Chicago's first railway, Galena and Chicago Union Railroad, and the Illinois and Michigan Canal both opened in 1848. The canal allowed steamboats and sailing ships on the Great Lakes to connect to the Mississippi River.

A flourishing economy brought residents from rural communities and immigrants from abroad. Manufacturing and retail and finance sectors became dominant, influencing the American economy. The Chicago Board of Trade (established 1848) listed the first ever standardized 'exchange traded' forward contracts, which were called futures contracts.

In the 1850s, Chicago gained national political prominence as the home of Senator Stephen Douglas, the champion of the Kansas-Nebraska Act and the "popular sovereignty" approach to the issue of the spread of slavery. These issues also helped propel another Illinoisan, Abraham Lincoln, to the national stage. Lincoln was nominated in Chicago for US President at the 1860 Republican National Convention. He defeated Douglas in the general election, and this set the stage for the American Civil War.

To accommodate rapid population growth and demand for better sanitation, the city improved its infrastructure. In February 1856, Chicago's Common Council approved Chesbrough's plan to build the United States' first comprehensive sewerage system. The projectraised much of central Chicago to a new grade. While elevating Chicago, and at first improving the health of the city, the untreated sewage and industrial waste now flowed into the Chicago River, then into Lake Michigan, polluting the primary source of fresh water for the city. The city responded by tunneling two miles (3 km) out into Lake Michigan to newly built water cribs. In 1900, the problem of sewage contamination was largely resolved when the city completed a major engineering feat. It reversed the flow of the Chicago River so that the water flowed away from Lake Michigan rather than into it. This project began with the construction and improvement of the Illinois and Michigan Canal, and was completed with the Chicago Sanitary and Ship Canal that connects to the Illinois River, which flows into the Mississippi River.

In 1871, a Great Chicago Fire destroyed an area of about 4 miles long and 1 mile wide, a large section of the city at the time.undefinedMuch of the city, including railroads and stockyards, survived intact, and from the ruins of the previous wooden structures arose more modern constructions of steel and stone. These set a precedent for worldwide construction. During its rebuilding period, Chicago constructed the world's first skyscraper in 1885, using steel-skeleton construction.

Court of Honor at the World's Columbian Exposition in 1893

Chicago's flourishing economy attracted huge numbers of new immigrants from Europe and migrants from the Eastern United States. Of the total population in 1900, more than 77% were either foreign-born or born in the United States of foreign parentage. Germans, Irish, Poles,Swedes and Czechs made up nearly two-thirds of the foreign-born population (by 1900, whites were 98.1% of the city's population).

Labor conflicts followed the industrial boom and the rapid expansion of the labor pool, including the Haymarket affair on May 4, 1886. Concern for social problems among Chicago's immigrant poor led Jane Addams to co‑found Hull House in 1889. Programs developed there became a model for the new field of social work.

During the 1870s and 1880s, Chicago attained national stature as the leader in the movement to improve public health. City, and later state laws, that upgraded standards for the medical profession and fought urban epidemics of cholera, smallpox, and yellow fever were both passed and enforced. These laws became templates for public health reform in other cities and states.

The city established many large, well-landscaped municipal parks, which also included public sanitation facilities. The chief advocate for improving public health in Chicago was Dr. John H. Rauch, M.D.. Rauch established a plan for Chicago's park system in 1866. He created Lincoln Park by closing a cemetery filled with shallow graves, and in 1867,in response to an outbreak of cholera he helped establish a new Chicago Board of Health. Ten years later he became the secretary and then the president of the first Illinois State Board of Health, which carried out most of its activities in Chicago.

In the 19th century, Chicago became the nation's railroad center, and by 1910 over 20 railroads operated passenger service out of 6 different downtown terminals. In 1883, Chicago's railway managers needed a general time convention, so they developed the standardized system of North American time zones. This system for telling time spread throughout the continent.

In 1893, Chicago hosted the World's Colombian Exposition on former marshland at the present location of Jackson Park. The Exposition drew 27.5 million visitors, and is considered the most influential world's fair in history. The University of Chicago, formerly at another location moved to the same South Side location in 1892. The term "midway" for a fair or carnival referred originally to the Midway Plaisance, a strip of park land that still runs through the University of Chicago campus and connects Washington and Jackson Parks.

20th and 21st Centuries
During World War I and the 1920s there was a major expansion in industry. The availability of jobs attracted African-Americans from theSouthern United States. Between 1910 and 1930, the African-American population of Chicago increased dramatically, from 44,103 to 233,903. This Great Migration had an immense cultural impact, called the Chicago Black Renaissance, part of the New Negro Movement, in art, literature, and music. Continuing racial tensions and violence, such as the Chicago Race Riot of 1919, also occurred.

The ratification of the 18th amendment to the Constitution in 1919 made the production and sale (including exportation) of alcoholic beverages illegal in the United States. This ushered in the beginning of what is known as the Gangster Era, a time that roughly spans from 1919 until 1933 when Prohibition was repealed. The 1920s saw gangsters, including Al Capone, Dion O'Banion, Bugs Moran and Tony Accardo battle law enforcement and each other on the streets of Chicago during the Prohibition era. Chicago was the location of the infamous St. Valentine's Day Massacre in 1929, where Al Capone sent men to gun down members of his rival gang, North Side, led byBugs Moran.

In 1924, Chicago was the first American city to have a homosexual-rights organization, the Society for Human Rights. This organization produced the first American publication for gays, Friendship and Freedom. Police and political pressure soon caused it to disband.

In 1933, Chicago Mayor Anton Cermak was fatally wounded in Miami, Florida during a failed assassination attempt on President-elect Franklin D. Roosevelt. In 1933 and 1934, the city celebrated its centennial by hosting the Century of Progress International Exposition Worlds Fair. The theme of the fair was technological innovation over the century since Chicago's founding.

In March 1937, there was a violent strike by about 3,500 drivers for Checker and Yellow Cab Companies which included rioting that went on for weeks. The cab companies hired "strike breakers", and the cab drivers union hired "sluggers" who ragged through the downtown Chicago area looking for cabs and drivers not participating in the strike.

On December 2, 1942, physicist Enrico Fermi conducted the world's first controlled nuclear reaction at the University of Chicago as part of the top-secret Manhattan Project. This led to the creation of the atomic bomb by the United States, which it used in World War II in 1945.

Mayor Richard J. Daley, a Democrat, was elected in 1955, in the era of machine politics. Starting in the early 1960s due to blockbusting, many white residents, as in most American cities, left the city for the suburbs. Whole neighborhoods were completely changed based on race. Structural changes in industry, such as globalization and job outsourcing, caused heavy losses of jobs for lower skilled workers. In 1966, Martin Luther King, Jr. and Albert Raby led the Chicago Freedom Movement, which culminated in agreements between Mayor Richard J. Daley and the movement leaders.

Two years later, the city hosted the tumultuous 1968 Democratic National Convention, which featured physical confrontations both inside and outside the convention hall, including full-scale riots, or in some cases police riots, in city streets. Major construction projects, including the Sears Tower (now known as the Willis Tower, which in 1974 became the world's tallest building), University of Illinois at Chicago, McCormick Place, and O'Hare International Airport, were undertaken during Richard J. Daley's tenure. In 1979, Jane Byrne, the city's first female mayor, was elected. She helped mitigate crime in the Cabrini-Green housing project and guide Chicago's school system out of a financial crisis.

In 1983, Harold Washington became the first black mayor of the city of Chicago. Washington's first term in office directed attention to poor and previously neglected minority neighborhoods. He was re‑elected in 1987 but died of a heart attack soon after. Washington was succeeded by 6th ward Alderman Eugene Sawyer who was elected by the Chicago City Council and served until a special election.

Richard M. Daley, son of Richard J. Daley, was elected in 1989. His accomplishments included improvements to parks and creating incentives for sustainable development. After successfully standing for re-election five times, and becoming Chicago's longest serving mayor, Richard M. Daley declined to run for a seventh term.

On February 23, 2011, former Illinois Congressman and White House Chief of Staff, Rahm Emanuel, won the mayoral election, beating five rivals with 55 percent of the vote,undefinedand was sworn in as Mayor on May 16, 2011.