Admiral Scheer capsized in Kiel April 9: Day of Valor in the Philippines (1942); Education and Sharing Day in the United States (2025); Vimy Ridge Day in Canada (1917) 193 – Year of the Five Emperors: Septimius Severus was proclaimed Roman emperor by his troops at Carnuntum in modern-day Austria. 1388 – Despite being vastly outnumbered, forces of the Old Swiss Confederacy defeated an Austrian army at the Battle of Näfels. 1945 – The German heavy cruiser Admiral Scheer (pictured), the most successful capital-ship surface raider of the Second World War, was sunk by British bombers in port in Kiel. 2005 – Charles, Prince of Wales, married Camilla Parker Bowles in a civil ceremony at the Windsor Guildhall. 2021 – Myanmar civil war: Burmese military and police forces killed at least 82 civilians in the Bago massacre, including people protesting a a recent coup d'état. Isambard Kingdom Brunel (b. 1806)Mary Jackson (b. 1921)Young Dirty Bastard (b. 1989) More anniversaries: April 8 April 9 April 10 Archive By email List of days of the year About