Portal:War/Selected anniversaries/September 22
- AD 66 - Emperor Nero creates the legion I Italica.
- 1236 - The Lithuanians and Semigallians defeat the Livonian Brothers of the Sword in Battle of Šiauliai.
- 1866 - Decisive Battle of Curupaity in the War of the Triple Alliance.
- 1937 - Spanish Civil War: Peña Blanca is taken; the end of the Battle of El Mazuco.