World (Aztec Empire)

Population
By 2010 the Earth has a population of 7.2 billion people, being America the third most populated continent. The biggest Megalopolis in the world is the Pur-Ten-Cax-Cem in central Anahuac having more than 62million people in 10 metropolitan areas, being the most important of them Tenochtitlan (27.3 million), Cacaxtla (9.7 million), Zipolite (7.3 million), Purepechcalli (7.1 million) and Cempohuallan (3.9 million)