Medieval Europe By Laura Oconnell 1500 BCE Leonardo Da Vinci rebirth of Classical Art 1492 BCE Columbus discovers America 1349 BCE The plage started 1216 BCE Translations of words started 1096 BCE The Crusades 801 BCE Universities are started in the east 800 BCE Viking invasions 800 BCE Charlemagne promotes science and education 673 BCE Siege of Constantinople 622 BCE Beginning of Islam 477 BCE Fall out of the Roman Empire 476 BCE Medieval europe starts Dec 24, 1139 Crossbow invented