April 16 MV Sewol 1520 – A revolt of citizens in Toledo, Castile, opposed to the rule of the foreign-born Charles I began when the royal government attempted to unseat radical city councilors. 1862 – Slavery in Washington, D.C., ended when the District of Columbia Compensated Emancipation Act became law. 1945 – Second World War: British and Canadian forces concluded the Liberation of Arnhem in the Netherlands from German occupation. 1948 – The Organisation for European Economic Co-operation, headquartered in Paris, was founded. 2014 – The ferry MV Sewol (pictured) capsized and sank off Donggeochado, South Korea, killing 306 people, mainly students from Danwon High School. Frederick I, Duke of Austria (d. 1198)Molly Brant (d. 1796)Ponnambalam Ramanathan (b. 1851) More anniversaries: April 15 April 16 April 17 Archive By email List of days of the year About