Can you take a picture of the map? If their is a map.
Similarites
*Annual flooding left fertile soil
*Surplus of food allowed specialized jobs
*Used the rivers for trading
*ALL worshiped many gods
*Built large temples
*They had rulers
Differences
*All had used different rivers
*Indus Valley; Cities were planned in a grid
*Believed in afterlife
*3 or the 4 civilizations fell
this is just ideas of similarities and differences, sorry if this isn't all that you wanted or expected, i am still working on mine, but this can help you along the lines, i can try to write something if i finish mine early.
Hope this helps :)
Jamestown,Rhode Island, Massachusetts are correct I think
