The Aztecs appeared in Mesoamerica–as the south-central region of pre-Columbian Mexico is known–in the early 13th century. ... When the Aztecs saw an eagle perched on a cactus on the marshy land near the southwest border of Lake Texcoco, they took it as a sign to build their settlement there.
The President is chief of state. This means he is the ceremonial head of the government of the United States, the symbol of all the people of the nation.
