Mohenjo-daro and Harappa are cities which are built on river banks, Mohenjo-Daro is been found on right bank of the Indus River while Harappa was situated at left bank of the river Ravi.
The three Indus Valley civilizations (Harappa and Mohenjo-Daro, Aryans, and Dravidians) can be seen to be larger compare with the ancient Egyptian civilization.
It is from these three Indus Valley civilizations that world's first dentists came from and they measure about 5 km.
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