The answer is rice hope this helps
By 1500, the Aztec Empire stretched from the Pacific Ocean
to the Gulf of Mexico, controlling 28 million people. By then, Tenochtitlan and
other nearby islands has fused into one great capital city, with an estimated population
of 400,000. They constructed a system of dams and aqueducts to control
lake levels and bring in fresh water from the mainland to supplement the
springs on the islands since then all else follows like their source of food
through the system of hydraulic agriculture, draining swampland and creating
artificial islands to grow food for the city. Making their civilization a successful
one.
Racism.......................
In the ratification debate, the Anti-Federalists opposed to the Constitution. They complained that the new system threatened liberties, and failed to protect individual rights. The Anti-Federalists weren't exactly a united group, but instead involved many elements.
