section_path: History/Post-revolutionary period and early 19th century
section_name: Post-revolutionary period and early 19th century
paragraph_text: Post-revolutionary period and early 19th century
  
  In January 1785, the assembly of the Congress of the Confederation made New York City the national capital. New York was the last capital of the United States under the Articles of Confederation and the first under the Constitution. As the capital, New York City hosted the inauguration of the first President, George Washington, and the first Congress, at Federal Hall on Wall Street. Congress drafted the Bill of Rights there. The Supreme Court held its first organizational sessions in New York in 1790.
  
  In 1790, for the first time, New York City surpassed Philadelphia as the nation's largest city. At the end of 1790, the national capital was moved to Philadelphia, where it remained while the new capital in Washington, D.C. was being constructed.
  
  During the 19th century, New York City's population grew from 60,000 to 3.43 million. Under New York State's gradual emancipation act of 1799, children of slave mothers were to be eventually liberated but to be held in indentured servitude until their mid-to-late twenties. A significant free Black population gradually developed in Manhattan, made up of former slaves who had been freed by their masters after the American Revolutionary War, as well as escaped slaves. The New York Manumission Society worked for abolition and established the African Free School to educate Black children. It was not until 1827 that slavery was completely abolished in the state. Free Blacks struggled with discrimination and interracial abolitionist activism continued. New York City's population jumped from 123,706 in 1820 (10,886 of whom were Black and of which 518 were enslaved) to 312,710 by 1840 (16,358 of whom were Black).
  
  Also in the 19th century, the city was transformed by both commercial and residential development relating to its status as a national and international trading center, as well as by European immigration, respectively. The city adopted the Commissioners' Plan of 1811, which expanded the city street grid to encompass almost all of Manhattan. The 1825 completion of the Erie Canal through central New York connected the Atlantic port to the agricultural markets and commodities of the North American interior via the Hudson River and the Great Lakes. Local politics became dominated by Tammany Hall, a political machine supported by Irish and German immigrants. In 1831, New York University was founded.
  
  Several prominent American literary figures lived in New York during the 1830s and 1840s, including William Cullen Bryant, Washington Irving, Herman Melville, Rufus Wilmot Griswold, John Keese, Nathaniel Parker Willis, and Edgar Allan Poe. Members of the business elite lobbied for the establishment of Central Park, which in 1857 became the first landscaped park in an American city.
  
  The Great Irish Famine brought a large influx of Irish immigrants, of whom more than 200,000 were living in New York by 1860, representing over a quarter of the city's population. Extensive immigration from the German provinces meant that Germans comprised another 25% of New York's population by 1860.