4th » Ottoman wars in Europe: The Siege of Belgrade (1456) known as Siege of Nándorfeqhérvár (Belgrade) begins.
7th » A Retrial of Joan of Arc named retrial verdict acquits Joan of Arc of Heresy in Christianity called heresy 25 years after her death.
22nd » Ottoman Wars in Europe: Siege of Belgrade (1456) named Siege of Belgrade John Hunyadi, Regent of the Kingdom of Hungary, defeats Mehmet II of the Ottoman Empire