1) The four River Valley Civilizations are the Egyptians, the Mesopotamians, the Chinese, and the Indus River Valley.

2) They all had cities, religions, and a writing system

3) The Hebrews were the only monotheistic people, the Indus River Valley were the only people to grid out their cities, the Chinese led with dynasties, and the Egyptians were skilled at geometry.

4)They all lived in primitive cities made from basic materials such as clay, brick, and wood. Also, they all believe in god(s) and had a written language.