314 – Pope Sylvester I succeeds Pope Miltiades.1606 – Gunpowder Plot: Guy Fawkes is executed for plotting against Parliament and King James.1865 – American Civil War: The United States Congress passes the Thirteenth Amendment to the United States Constitution, abolishing slavery and submits it to the states for ratification.1915 – World War I: Germany is the first to make large-scale use of poison gas in warfare in the Battle of Bolimów against Russia.1917 – World War I: Germany announces that its U-boats will resume unrestricted submarine warfare after a two-year hiatus.1918 – A series of accidental collisions on a...
