Between 6700 BC and 1600 BC, corn was increasing used as a staple in the Mesoamerican diet, but it actually produced more malnutrition as it became more popular. Diets were improved through more efficient coastal fishing by the peoples of the origin of the Mayan philosophy along the Pacific Coast of El Salvador, Guatemala, and Chiapas, when they discovered the 13-day tidal calendar. But that only helped to spread higher culture along the coast itself.
It wasn't until they discovered the 'magic' of soaking corn kernels in ashes (nixtamalization) that civilization spread to the inland areas. At first, this practice was done as a way to soften up the hard encasing of the kernels, but soon the health benefits of the practice were noted. The health of entire communities soon improved dramatically as they overcame the niacin deficiency, known as pellegra, that is common to using corn as a staple food. Later soaking corn in lime was found to be even better than in ashes and it became the norm throughout Mesoamerica.
From Chalchuapa, Monte Alto, and La Blanca, these first Mayans brought this discovery to other peoples. In some cases it may have been a migration, as to El Mirador and Chiapa de Corzo. Other Mayan migrations were made from the Pacific Coast to the Yucatan and the Chiapas highlands, demonstrated by the splitting of the Mayan language groups, Yucateca Maya and Huasteca, respectively, at this time.
In other cases, with the central Mexican valley, the Zapotecs in the Oaxacan valley, and the Olmecs along the Veracruz Gulf Coast, it was an exchange of knowledge and culture, with the Mayans sharing their calendar and the 'nixtamal' discovery. The Olmecs then spread this information and other art and science to areas of present day Morelos and Guerrero.
These same early Mayan leaders had been spreading new hybrid varieties of corn to the same regions, but it only produced more disease and malnutrition. Why and how should they be believed now? The Mayan sacred text, the Popol Vuh, helps to answer that question. Next time we will explore the Popol Vuh, pellegra, and the crisis of leadership in early Mesoamerican cultures.
Según Paul Amaroli, se han documentado ya 3 erupciones focalizadas solo en el centro El Salvador, una de estas sucedida antes de la erupción de Ilopango, con una agricultura muy desarrollada.
http://userwww.sfsu.edu/~kbruhns/cihuatan/milpas.pdf https://www.saa.org/Portals/0/SAA/GovernmentAffairs/ElSalvador.pdf
Posted by: rolando vela | 03/07/2010 at 08:53 AM