Want this question answered?
Two resons historians use to explain the downfall of Indus Valley cities
The Aryans contributed to the Indus River Valley Civilization's downfall.
The Aryans contributed to the Indus River Valley Civilization's downfall.
The Aryans contributed to the Indus River Valley Civilization's downfall.
The Indus valley people left because the were having lots of invasion, they left their home so in 1500 BC they were forgotten.
Archaeologists and historians have been unable to decipher the Indus Valley writing.
Tectonic shifts caused a major river, the Sarasvati/Ghaggar river, to dry up. There were also changes in the monsoon rains which caused floods followed by droughts, so that most of the people left.
for unknown reasons
for unknown reasons
The Illumanti reptile aliens abducted and probed the indus valley.
The civilization's ancient writing has not been deciphered.
I don't really Know or care