1. Why did people originally start living together on the Mesopotamian plains? They had to work together to provide enough water to make crops successful.
They enjoyed each other's company.
The had to protect each other from invaders.
They produced so much food that they needed extra help to harvest it all.

The  pan-african movement  was an "emotional, cultural, psychological and ideological  movement  that began among the  african  dispora in the western hemisphere, for a closer  purpose, so that  african  people could feel secure, attain political, economic as well as psychological power visa vis other races or world regions" .