Large cities such as Harappa and Mohenjo-Daro developed in the Indus River Valley. (0h 16min, mar 7, 2500 y BC – 10h 24min, dec 24, 1600 y BC)
Description:
https://docs.google.com/document/d/1HRXn2y0EvxgzxNbj-V3y0iDd-IqaG9nSr11EHSbqV0s/edit?usp=sharingAdded to timeline:
Date:
0h 16min, mar 7, 2500 y BC
10h 24min, dec 24, 1600 y BC
~ 899 years