| Event | (1)st or (2)nd |
|---|
| Construction of the Colosseum completed | |
| Attila the Hun died | |
| First Bulgarian Empire founded | |
| Christianity legalized in the Roman Empire | |
| Tang Dynasty started issuing paper money | |
| Arabs conquered Jerusalem | |
| Western Roman Empire ended | |
| Otto I became Holy Roman Emperor | |
| Last ancient Olympic Games held | |
| Han Dynasty reestablished under Guangwu | |
| I-Hsing invented mechanical clock | |
| Mesrob Mashtots invented Armenian alphabet | |
| Teotihuacan's Pyramid of the Sun completed | |
| Hindu–Arabic numeral system developed in India | |
| Roman emperor Augustus died | |
| Christianity began | |
| Charlemagne became Holy Roman Emperor | |
| London founded | |
| Rome burned while Nero fiddled | |
| Quran compiled in standard form for the first time | |
| Buddhism officially introduced in Japan | |
| Cai Lun of China invented paper | |
| Panemone windmills invented in eastern Persia | |
| Mount Vesuvius destroyed Pompeii | |
| Muhammad emigrated to Medina (Hijra) | |
| Papal States formally established | |
| Egyptians granted Roman citizenship | |
| Erik the Red formed a colony in Greenland | |
| End of Mayan Classic Period | |
| Justinian I became Byzantine Emperor | |
| Construction of the Colosseum completed | |
| Attila the Hun died | |
| First Bulgarian Empire founded | |
| Christianity legalized in the Roman Empire | |
| Tang Dynasty started issuing paper money | |
| Arabs conquered Jerusalem | |
| Western Roman Empire ended | |
| Otto I became Holy Roman Emperor | |
| Last ancient Olympic Games held | |
| Han Dynasty reestablished under Guangwu | |
| I-Hsing invented mechanical clock | |
| Mesrob Mashtots invented Armenian alphabet | |
| Teotihuacan's Pyramid of the Sun completed | |
| Hindu–Arabic numeral system developed in India | |
| Roman emperor Augustus died | |
