Significance of 220, 476 and 550
- 220- fall of Rome 476- fall of Qin dynasty 550-end of Greece
- 220-fall of Gupta dynasty 476-fall of Rome 550-end of Persia
- 220-end of Han empire 476-fall of Persia 550-Trojan War
- 220-end of Han empire 476-fall of Rome 550-fall of Gupta emp