History of basball By brianna.brady Apr 4, 1839 baseball began baseball began in the early 1800's Nov 5, 1846 fist offical game the fist offical game was between the Knickerbockers and a group of cricket players. Sep 9, 1850 California enters the union califonia enters the unoin Nov 6, 1861 The Civil War Begins. Nov 6, 1866 The first womens' baseball team is started by a group from Vassar College.