📜 This Day in History
April 9
193Year of the Five Emperors: Septimius Severus was proclaimed Roman emperor by his troops at Carnuntum in modern-day Austria.- 1917First World War: The Canadian Corps began the first wave of attacks of the Battle of Vimy Ridge in Vimy, France.
- 1945The German heavy cruiser Admiral Scheer, the most successful capital-ship surface raider of the Second World War, was sunk by British bombers in port in Kiel.
- 1967The Boeing 737 took its maiden flight, eventually becoming the most produced commercial passenger jet airliner in the world.
- 1999Ibrahim Baré Maïnassara, President of Niger, was shot dead by soldiers in Niamey.
- 2021Prince Philip, the consort of Queen Elizabeth II, died at Windsor Castle aged 99.