Where were the early river valley civilizations located

The first civilizations formed on the banks of rivers. The most notable examples are the Ancient Egyptians, who were based on the Nile, the Mesopotamians in the Fertile Crescent on the Tigris/Euphrates rivers, the Ancient Chinese on the Yellow River, and the Ancient India on the Indus.

to extend a country’s power and influence

equal area projections

equal-area projection. a projection in which regions on the earth's surface that are of equal area are represented as equal.