March 18 – History, Events, Births, Deaths, Holidays and Observances On This Day

March 18 in History 1068 – An earthquake in the Levant and the Arabian Peninsula, leaves up to 20,000 dead. 1229 – Frederick II, Holy Roman Emperor, declares himself King of Jerusalem in the Sixth Crusade. 1241 – First Mongol invasion of Poland: Mongols overwhelm Polish armies in Kraków in the Battle of Chmielnik and plunder the city. 1314 – Jacques de Molay,…