American Revolutionary War. The Continental Army was forced to abandon Manhattan after the Battle of Fort Washington on November 16, 1776. The city, greatly damaged by the Great Fire of New York during the campaign, became the British military and political center of operations in North America for the remainder of the war. The military center for the colonists was established in neighboring New Jersey. British occupation lasted until November 25, 1783, when George Washington returned to Manhattan, as the last British forces left the city. From January 11, 1785, to the fall of 1788, New York City was the fifth of five capitals of the United States under the Articles of Confederation, with the Continental Congress meeting at New York City Hall (then at Fraunces Tavern). New York was the first capital under the newly enacted Constitution of the United States, from March 4, 1789, to August 12, 1790, at Federal Hall. Federal Hall was also the site where the United States Supreme Court met for the first time, the United States Bill of Rights were drafted and ratified, and where the Northwest Ordinance was adopted, establishing measures for adding new states to the Union. 19th century New York grew as an economic center, first as a result of Alexander Hamilton's policies and practices as the first Secretary of the Treasury and, later, with the opening of the Erie Canal in 1825, which connected the Atlantic port to the vast agricultural markets of the Midwestern United States and Canada. By 1810, New York City, then confined to Manhattan, had surpassed Philadelphia as the largest city in the United States. The Commissioners' Plan of 1811 laid out the island of Manhattan in its familiar grid plan. Tammany Hall, a Democratic Party political machine, began to grow in influence with the support of many of the immigrant Irish, culminating in the election of the first Tammany mayor, Fernando Wood, in 1854. Tammany Hall dominated local politics for decades. Central Park, which opened to the public in 1858, became the first landscaped public park in an American city. New York City played a complex role in the American Civil War. The city's strong commercial ties to the southern United States existed for many reasons, including the industrial power of the Hudson River, which allowed trade with stops such as the West Point Foundry, one of the great manufacturing operations in the early