Treaty of Verdun (843 AD) ...
The Ottonian Holy Roman Empire of Germany (962 AD) ...
The Battle of Hastings (1066 AD) ...
Declaration of Magna Carta (1215 AD) ...
The Great Famine (1315-1317 AD) ...
The Hundred Years' War (1337 AD) ...
The Black Death (1348-1350 AD) ...
The Great Schism (1378-1417 AD)
I’m sorry but I used google