16 févr. 2500 av. J.-C. - Harappa
Description:
 Ghagger-Hakra river valley 
Outer city wall with central citadel on raised platform to protect from flooding 
Extensive drainage system and high level of water management technology 
No clear ritual center 
Ajouté au bande de temps:
Date:
16 févr. 2500 av. J.-C.
Maintenaint
 ~ Il y a 4528 ans