Hi, I need help

Question

could someone tell me what the river valley civilizations are, I know like what they were and what they did, but can someone give me the names? thank you

Answer 1

i know about like mesopotamia and indus valley but the others

Answer 2

from what i can read, mesopotamia, indus valley, egypt, and yellow river.
those were the 4 river valley civilizations, does that sound right? please anyone answer if i’m right