What happened to them /his/?
BIG
This literally looks like one of japanese prostate stimulators.
>>2801980
Climate change, collapse of trade routes, and migrations most likely, just like the civilizations to the West of them.
CHARIOT'D
Drought. River shifted. Etc.
If I remember watching a documentary correct, their entire city-states were built around river/water. The big drought lasted a hundred year or so and the river shifted, this led to the collapse of the civilization itself.
>>2801980
proto-indo-aryan speaking peoples happened
>>2801980
the white people running the show became too diluted to maintain civilization