41
/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
May 31, 2026
586856
178875
2
Public Timelines
FAQ

1. Great Wall of China Constructed (18h 40min, jan 2, 220 y BC – 6h 44min, dec 25, 220 y BC)

Description:

It was constructed around 220 BC in order to unify pre-existing walls.

Added to timeline:

Date:

18h 40min, jan 2, 220 y BC
6h 44min, dec 25, 220 y BC
~ 11 months