played an important role in African-American history. After the American Revolutionary War, New York passed a gradual abolition law, making children free who were born to slave mothers. But the last slaves were not freed until 1827. During the War of 1812, the Gardiners used slaves to transport supplies back and forth to Gardiner's Island. According to the Gardiners, slaves were easier to pass through British blockades since it was "obvious" that they were "owned." During this period Sag Harbor rose to a port status, rivaling New York, due to its whale oil trade. Many slaves worked on the docks in connection with shipping and the whale trade. After slavery had ended, Gardiner's former slaves developed small houses in Freetown (East Hampton), just north of East Hampton village. Sag Harbor's freedmen developed the Eastville community in Sag Harbor. In 1808 the United States and Great Britain cooperated in ending the African slave trade, but Spain continued to transport slaves to its Caribbean and Latin American colonies. On August 26, 1839, crew from La Amistad, an illegal slave ship that had been commandeered by its captives off Cuba, dropped anchor at Culloden Point and came ashore at Montauk to get supplies. The slaves, who were inexperienced navigators, thought they were on course to Africa. Members of the U.S. Navy ship USS Washington, seeing the slaves on shore, arrested them and took them to Connecticut. This was an international case, with Spain arguing for the return of the ship and slaves (or compensation). The United States had its own laws to interpret. The Mende people who had been illegally taken argued for their freedom. Amistad case was ultimately decided by the U.S. Supreme Court in 1841. John Quincy Adams argued for the Africans. The court decided in their favor, opining that the initial capture of the Mende by the Spanish was illegal, so they were classified as free men defending their freedom and were not charged under slave law with mutiny or revolt. East Hampton film director Steven Spielberg popularized the slave revolt and Supreme Court case in the 1997 film Amistad. One of the Amistad former slaves stayed in the United States after the trial. He worked as a valet for President John Tyler. He was killed aboard USS Princeton along with David Gardiner and two Cabinet officers, when one of the cannons exploded during a demonstration. In 1845 African-American sailor