1800's Timeline By coled1 Period: Jan 1, 1800 to Jan 1, 1840 1800 through 1840 Jan 1, 1802 Ohio Outlaws Slavery Jan 18, 1803 Lousiana Purchase Jan 1, 1814 British burn down Capitol Building Feb 28, 1819 Alabama Becomes a slave state Making the states even on slave states and non slave states. Jan 1, 1821 Free blacks can vote in New York Jan 1, 1828 Andrew Jackson is elected Jan 1, 1835 Texas declares independence from Mexico