I don't know which came first, but Harappa, Lothal, and Mohenjo-Daro are the major cities from the Harappan civilization.
A rising population equates to a larger labor force. In other words, the more people there are, the more people can be working in factories making products and in fields producing resources.
I think the difference is caused by a person or group actually going through with genocide versus an attempt at it, but that's just my best guess?
aeronautical is one adjective..I am looking for the rest