The Aztecs were Mesoamerican people who lived in what right now is Mexico City and the territory starting in 14th century. Their empire lasted about 200 years and was mostly tributes and military conquests. They were the most advanced society of their time. It contained lots of practices such as human sacrifices that now would be bizarre and uncivilised. In the early 1500s the Spanish arrived and took over the Aztecs. According to the legend, the Aztecs were born inside the Earth, coming through caves. Northwest Mexico was where their first settlement. They have not yet discovered any archeological evidence so they don’t know if its real or mythical.