How did other groups already live in the valley of Mexico treat Aztecs?

Initially, the Aztecs were treated with hostility and suspicion by other groups already living in the Valley of Mexico. The Aztecs were a relatively new group of migrants who arrived in the Valley of Mexico in the 13th century. They were seen as outsiders and foreigners by the established communities, who viewed the Aztecs with a mixture of fear and contempt. The Aztecs themselves contributed to this negative perception through their aggressive behavior and their practice of human sacrifice. As a result, the Aztecs were often forced to live on the outskirts of settlements and were denied access to resources and opportunities. They faced constant threats from hostile neighbors who sought to expel or destroy them.