1099: City of Jerusalem is captured and plundered by Christian forces during the First Crusade

1381: John Ball, a leader in the Peasants’ Revolt, is hanged, drawn and quartered in the presence of Richard II of England

1410: Battle of Grunwald (First Battle of Tannenburg, Battle of Žalgiris), one of Medieval Europe’s largest battles during the Polish-Lithuanian Teutonic War. Polish King Władysław Jagiełło and Lithuanian Grand Duke Vytautas defeat Teutonic Ulrich von Jungingen.

1799: The Rosetta Stone is found in the Egyptian village of Rosetta by French Captain Pierre-François Bouchard during Napoleon’s Egyptian Campaign

1955: Eighteen Nobel laureates sign the Mainau Declaration against nuclear weapons, later co-signed by thirty-four more laureates

Source: Onthisday.com