The ancient Egyptians built the Pyramids of Giza by hauling massive stone blocks across the desert and stacking them on top of each other to form a pyramid.
To vote in the United States, you have to be an American citizen.
There are other requirements:
-At least 18 years old
-Reside in the US
-Not forbidden from voting (probation, court order, prison, etc)
But, being an American citizen is the key requirement.
World War I was really the fist "total war" in the sense that practically all available manpower and resources were used to fight the enemy. This meant that there were no "breaks" and very few rules to the fighting.
Answer:
Growing a surplus of food
using irrigation in farming
trading between city-States
being located near rivers
Explanation:
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