5.THE MAYAS:
Their ancestors began around 600 B.C.in the south and southeast of Mexico,and expanded in the Peten area, currently Guatemala and Belize (200 B.C.), with cities such as Nakbe, El Mirador ( that has the highest pyramid in America), Cival, etc.Around 300 A. D., began the well-known Classic Period. The Mayan city-states expanded from southern Mexico to El Salvador. From this period that lasted until the seventh century, are Tikal, Quirigua, Uaxactin, Palenque, Copan, Rio Azul, etc.They invented the zero and also the writing of logograms, they were great architects, but in the 9th century, as fast as it is incomprehensible, these magnificent cities were completely abandoned, which is why the Mayan collapse occurred. Some historians assume that these cities were abandoned due to a prolonged drought of several years caused by deforestation for the cultivation of corn. The resulting famine caused the population to rebel against their rulers who could no longer fulfill their promises to bring rain every year.
