tianguis

thumb|300px|Tianguis or market day in Ixcateopan de Cuauhtémoc, [[Guerrero]] thumb|Tianguis near central Monterrey. A '''''' is an open-air market or bazaar that is traditionally held on certain market days in a town or city neighborhood in Mexico and Central America. This bazaar tradition has its roots well into the pre-Hispanic period and continues in many cases essentially unchanged into the present day. The word comes from in Classical Nahuatl, the language of the Aztec Empire. In rural areas, many traditional types of merchandise are still sold, such as agriculture supplies and products as well as modern, mass-produced goods. In the cities, mass-produced goods are mostly sold, but the organization of events is mostly the same. There are also specialty events for holidays such as Christmas as well as for particular types of items such as cars or art.

==History== thumb|300px|Model of Aztec at the National Museum of Anthropology thumb| in Mexico City in 1885 thumb|Hall in the Market in Mexico City The tradition of buying and selling in temporary markets set up either on a regular basis (weekly, monthly, etc.) is a strong feature in much of Mexican culture and has a history that extends far back into the pre-Hispanic period. It was the most important form of commerce in the pre-Hispanic era, and after the Spanish Conquest, the Europeans mostly kept this tradition intact. Market areas have been identified in ruins such as El Tajín in Veracruz, and a number of pre-Hispanic towns were initially founded as regional markets, such as Santiago Tianguistenco and Chichicastenango, Guatemala . The word derives from the Nahuatl word 'open air-market', from 'to trade, sell'. The most important markets, such as the one in Tlatelolco, were set up and taken down every day of the week. This market served about one fifth of the population of Tenochtitlan (Mexico City) before the Conquest and had its own governing system, which included a panel of twelve judges to resolve disputes. Today, one of the most visited exhibits in the National Museum of Anthropology is the model of the pre-Hispanic market such as the one in Tenochtitlan.