Most of those religions focused on the sun, since the sun was giver of life...meaning food crops and warmth.
Hope this helepd.
Answer:
It was used for record keeping
It was one of the first writing systems
It helped archeologists understand Sumerian society.
Explanation:
I did this in edegunuity and got it right.
This would be the Rhine RIver
Answer:
migrated to urban areas in vast number