1 How your computer can hurt you-and what you can do about it By Don Sellers. 2  Peachpit Press (800-283-9444). 3  ISBN: 1566090210. 4  Peachpit Press sez: From eyestrain to carpal tunnel syndrome, computer-related injuries are on the rise.
Mesoamerica is a region and cultural area in the Americas, extending approximately from central Mexico to Belize, Guatemala, El Salvador, Honduras, Nicaragua, and northern Costa Rica, within which pre-Columbian societies flourished before the Spanish colonization of the Americas in the 15th and 16th centuries.here is extensive topographic variation in Mesoamerica, ranging from the high peaks circumscribing the Valley of Mexico and within the central Sierra Madre mountains to the low flatlands of the northern Yucatan YucatÃ¡n. peninsula
The Aztec. The last of the great MesoAmerican cultures were the Aztec, they were a Nahuatl-speaking people, who in the 15th and early 16th centuries, ruled a large empire in what is now central and southern Mexico.hen there were the Toltecs, who dominated much of central Mexico around 1200 A.D. Their language âNahuatlâ, was also spoken by the Aztecs. They were a militaristic nomadic people, and they or their ancestors may have sacked the city of Teotihuacan in 750 A.D.