How did aqueducts help develop Rome?
They provided herders with mountain land to raise livestock.
They provided ways to travel by boat from Rome to the sea.
They provided people living in the hills protection from invasions.
They provided water for drinking and agriculture.
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a social contract.

"a social contract is an agreement between citizens and their leader where the citizens give up certain freedoms in exchange for protection. the constitution of the united states is an example of a social contract."

the federal constitution of the united mexican states of 1824 was enacted on october 4 of 1824, after the overthrow of the mexican empire of agustin de iturbide. in the new constitution, the republic took the name of of united mexican states. it was replaced by the federal constitution of the united mexican states in 1857.

independent innovation during the abbasid caliphate