page_title: Manhattan
section_title: 20th century
hierarchical_section_title: Manhattan / History / 20th century
caption_attribution_description: Deutsch: New York feiert die Kapitulation Japans. Sie warfen alles mögliche und küssten jeden am Times Square English: "New York City celebrating the surrender of Japan. They threw anything and kissed anybody in Times Square." National archive number 80-G-377094 Naval Historical Center #520697
context_page_description: Manhattan, often referred to by residents of the New York City area as the City, is the most densely populated of the five boroughs of New York City, and coextensive with the County of New York, one of the original counties of the U.S. state of New York. Manhattan serves as the city's economic and administrative center, cultural identifier, and historical birthplace. The borough consists mostly of Manhattan Island, bounded by the Hudson, East, and Harlem rivers; as well as several small adjacent islands. Manhattan additionally contains Marble Hill, a small neighborhood now on the U.S. mainland, separated from the rest of Manhattan by the Harlem Ship Canal and later connected using landfill to the Bronx. Manhattan Island is divided into three informally bounded components, each aligned with the borough's long axis: Lower, Midtown, and Upper Manhattan.
  Manhattan has been described as the cultural, financial, media, and entertainment capital of the world, and the borough hosts the United Nations Headquarters.
context_section_description: The construction of the New York City Subway, which opened in 1904, helped bind the new city together, as did additional bridges to Brooklyn. In the 1920s Manhattan experienced large arrivals of African-Americans as part of the Great Migration from the southern United States, and the Harlem Renaissance, part of a larger boom time in the Prohibition era that included new skyscrapers competing for the skyline. New York City became the most populous city in the world in 1925, overtaking London, which had reigned for a century. Manhattan's majority white ethnic group declined from 98.7% in 1900 to 58.3% by 1990.
  On March 25, 1911, the Triangle Shirtwaist Factory fire in Greenwich Village killed 146 garment workers. The disaster eventually led to overhauls of the city's fire department, building codes, and workplace regulations.
  The period between the World Wars saw the election of reformist mayor Fiorello La Guardia and the fall of Tammany Hall after 80 years of political dominance. As the city's demographics stabilized, labor unionization brought new protections and affluence to the working class, the city's government and infrastructure underwent a dramatic overhaul under La Guardia. Despite the Great Depression, some of the world's tallest skyscrapers were completed in Manhattan during the 1930s, including numerous Art Deco masterpieces that are still part of the city's skyline, most notably the Empire State Building, the Chrysler Building, and the 30 Rockefeller Plaza.
  Returning World War II veterans created a postwar economic boom, which led to the development of huge housing developments targeted at returning veterans, the largest being Peter Cooper Village-Stuyvesant Town, which opened in 1947. In 1951–1952, the United Nations relocated to a new headquarters the East Side of Manhattan.
  The Stonewall riots were a series of spontaneous, violent demonstrations by members of the gay community against a police raid that took place in the early morning hours of June 28, 1969, at the Stonewall Inn in the Greenwich Village neighborhood of Lower Manhattan. They are widely considered to constitute the single most important event leading to the gay liberation movement and the modern fight for LGBT rights.
  In the 1970s, job losses due to industrial restructuring caused New York City, including Manhattan, to suffer from economic problems and rising crime rates. While a resurgence in the financial industry greatly improved the city's economic health in the 1980s, New York's crime rate continued to increase through the decade and into the beginning of the 1990s.
  The 1980s saw a rebirth of Wall Street, and Manhattan reclaimed its role at the center of the worldwide financial industry. The 1980s also saw Manhattan at the heart of the AIDS crisis, with Greenwich Village at its epicenter. The organizations Gay Men's Health Crisis (GMHC) and AIDS Coalition to Unleash Power (ACT UP) were founded to advocate on behalf of those stricken with the disease.
  By the 1990s crime rates started to drop dramatically due to revised police strategies, improving economic opportunities, gentrification, and new residents, both American transplants and new immigrants from Asia and Latin America. Murder rates that had reached 2,245 in 1990 plummeted to 537 by 2008, and the crack epidemic and its associated drug-related violence came under greater control. The outflow of population turned around, as the city once again became the destination of immigrants from around the world, joining with low interest rates and Wall Street bonuses to fuel the growth of the real estate market. Important new sectors, such as Silicon Alley, emerged in Manhattan's economy.
caption: V-J Day in Times Square in Times Square, 1945
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