Bloody Sunday (1968)
1968 CE.
Shown on the map at 49.472°, 17.107°.
Bloody Sunday was a massacre on 25 August 1968 when Soviet soldiers shot three unarmed civilians in Prostějov during the Warsaw Pact invasion of Czechoslovakia. Nine others were injured.
Text from the Wikipedia article Bloody Sunday (1968), licensed CC BY-SA 4.0.