trolled most                     of the central part of Mexico through a state payment system that got                     taxes and stopped them from being able to act independently from                     conquered tribal groups. The Aztecs moved into the central part of                     Mexico from the north and accomplished a tribal story by establishing                     a city where an eagle with a snake in its beak rested on a cactus. This                     became the national symbol for Mexico and was put on the country's                     flag and seal. The Aztecs started the city of Tenochtitlan in about the                     early 1300s, and then it became the capital of their empire. The                     Tlaxcalans in the east, the Tarascans on the west, and the Chichimecs                     in the north were outside the Aztec Empire and they would sometimes                     have wars with them. The nation's name comes from the Aztecs' war                     god, Mexitli.                      Spanish Conquest                     From when Hernando Cortez took over until 1821, Mexico was a                     colony of Spain. Cortez first came into the Valley of Mexico on the                     Mesa Central in 1519 after marching over land from Veracruz, the                     town he had started on the coastal plains. With less than 200 soldiers                     and a few horses, the first take-over of the Aztecs was possible only                     with the help that came from the big Indian armies that Cortez put                     together from some of the Aztecs' enemies. After a short first success                     at Tenochtitlan, the Spanish were driven from the city on the Noche                     Triste or, Sad Night but came back in 1521 and destroyed the city                     and strongly defeated the Aztecs. Within a short time the rest of                     central and southern...