"They strike open the wretched Indian's chest with flint knives and hastily tear out the palpitating heart which, with the blood, they present to the idols…They cut off the arms, thighs and head, eating the arms and thighs at ceremonial banquets. The head they hang up on a beam, and the body is…given to the beasts of prey." – Bernal Diaz, a Spaniard who described the Aztec’s human sacrifice
The Olmec people are widely recognized as the first major civilization of Mexico and are thus generally regarded as the mother civilization of Mesoamerica, making them the people from which all subsequent Mesoamerican cultures derived. In fact, the term Olmec is thought to have originated with the Aztec people, as Olmec in their Nahuatl language means “the rubber people”, a reference to the inhabitants of the land from which they accessed rubber. By and large, the Olmec culture is perhaps best identifiable by their so-called colossal heads, mammoth basalt head-statues wearing helmet-like headdresses found throughout Olmec habitation sites.
Around 2500 B.C., the Olmec settled primarily along Mexico's Gulf Coast in the tropical lowlands of south-central Mexico (in the modern-day States of Veracruz and Tabasco), and they flourished during North America's Prehistoric Indian Formative period from about 1700-400 B.C. Their direct cultural contributions were still evident as late as 300 A.D. Among Mesoamerican scholars, the Formative period is subdivided into the Preclassic (Olmec period), Classic (Maya period), and Postclassic (Toltec and Aztec periods).
From a cultural standpoint, their pyramids, open plazas, their ballgame, and possibly even centers of human sacrifice are thought to have established the societal model that subsequent societies like the Maya, Zapotec, Teotihuacano, Toltec, Mixtec, and Aztec would emulate. In the same vein, some scholars believe that they also affected the cultural development of the Native American groups of the United States and those of Central and South America as well. Proving to be one the most enduring models ever, the religious and cultural structure the Olmec established held reign for over 3,000 years, and it would likely have endured much longer without the arrival of the Spanish conquistadors.
In the years leading up to 2012, there has been much interest in the Maya calendar. Largely, this is because the calendar will complete its 5,200-year cycle on December 21, 2012, and this auspicious event has been misinterpreted as signaling the end of the world. For the Maya, the endings of calendar period of all lengths (cycles ranged from 20 days to centuries in length) were very important and required various types of rituals and offerings to be properly recognized. Often, the best acceptable “offering” was human blood, and Maya elites engaged in autosacrificial bloodletting to appease the deity presiding over the transition in question. Combined with the detailed Maya knowledge of astronomy, the calendar system functioned as a way for Maya priests and elites to know which particular god in their crowded pantheon was ruling at a particular moment. The Maya believed that each interval of time, embedded in units like the day, the night, the solar year, the k’atun (20 year cycle), the lunar cycle, and Venus’s cycle, was governed by a certain deity. Such knowledge was considered vital in Maya cosmology and allowed the elites to maintain and consolidate power, effect political change, and lend religious veracity to monumental building projects. The blending of technologies and religion extended to writing for the Maya, who used a writing system to codify and standardize religio-political beliefs.