Trade was important to the Sumer's city-states because when they traded thy would bring in new supply they they did not have and sometimes even food.
Sumerian citystates were originally theocracies.
Trade was important to the Sumer's city-states because when they traded thy would bring in new supply they they did not have and sometimes even food.
The city-states' armies were small and not united. Therefore, any attack from outside would surely spell demise. In addition, trade was difficult because of awkward geographical divisions.
crops and gold
Sumer
Sumer, in Mesopotamia, and Egypt.
social classes and trade.
Started trade and strong military.
the might trade water for obsidian
Sumer had a trade industry.
I think its Taj Mahal
Sumer