1828-1836 Andrew Jackson president of US 1829-1851 2nd Cholera pandemic 1830-1837 Reign of King William IV (Hanover) 1830-1860 Underground railroad leads 100,000+ slaves to freedom in US 1835-1842 2nd Seminole War 1835 Halleys Comet 1835 Mormon leader Joseph Smith prophesies of coming of lord by 1891 1836 Texas war for independence from Mexico 1836 Arkansas enters the union -25th 1836 Battle of the Alamo 1837 Michigan enters the union - 26th 1837-1840 Martin Van Buren president of US 1837-1901 Reign of Queen Victoria (Hanover) 1837 Depression and Panic in the US - inflation, speculation 1838-1839Forced relocation of Cherokee 1839-1842Opium war between China and the English