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1700 BCE
Mohenjo-Daron
The ruins of the city were discovered under layers of silt during the construction of a railroad. The city also had several layers to it indicating that it had been destroyed and rebuilt several times. -
1500 BCE
Aryan Invasion
Before the time of the Aryan migration into the Indian subcontinent, there was a highly developed civilization in ancient India known as the Indus Valley Civilization.