Women get the vote
The 19th amendment to give women the right to vote passed in the US House of Representatives on May 21, 1919 with substantially more votes than the two-thirds majority it needed. Two weeks later, it passed in the Senate with just two votes more than the required two-thirds majority. The amendment became the law of the land in the summer of 1920 when Tennessee became the 36th and final state needed for ratification. The deciding vote was cast by Harry T. Burn, a young legislator from a conservative district who nonetheless supported the amendment on the advice and encouragement of his mother.