...BECAUSE OF ITS HISTORY...
Mérida was founded in 1542 by Francisco de Montejo "el Mozo" (son). It was built on the site of the Maya city of T'ho (also known as Ichcaanzihó or "city of the five hills", referring to five pyramids) which had been a center of Mayan culture and activity for centuries. Because of this, many historians consider Mérida the oldest continually-occupied city in the Americas.
Carved Maya stones from ancient T'ho were widely used to build the Spanish Colonial buildings that are plentiful in downtown Mérida, and are visible, for instance, in the walls of the main Cathedral. Much of Mérida's architecture from the Colonial period through the 18th century and 19th century is still standing in the centro historico of the city. From colonial times through the mid 19th century, Mérida was a walled city intended to protect the Peninsular and Criollo residents from periodic revolts by the indigenous Maya. Several of the old Spanish city gates survive, but modern Mérida has expanded well beyond the old city walls.
Late in the 19th century and the early 20th Century, the area surrounding Mérida prospered from the production of henequén (known as sisal in English, because it was exported from the port of Sisal, which was the most important port in the state during the 19th century). For a brief period, around the turn of the 20th century, Mérida was said to house more millionaires than any other city in the world. The result of this concentration of wealth can still be seen today. Many large and elaborate homes still line the main avenue of Paseo de Montejo, though few are occupied today by individual families. Many of these homes have been restored and now serve as office buildings for banks and insurance companies.
Mérida has the one of the largest centro historico districts in the Americas (surpassed only by Mexico City and Havana, Cuba). Large and small colonial homes line the city streets to this day, in various states of disrepair and renovation; the historical center of Mérida is currently undergoing a minor renaissance as more and more people are moving into the old buildings and reviving their former glory.
The city has been host to two bilateral United States - Mexico conferences, the first in 1999 (Bill Clinton - Vincente Fox) and the second in 2007 (George W. Bush - Felipe Calderón).
In June 2007, Mérida moved its city museum to the renovated Post Office building next to the downtown market. The Museum of the City of Mérida houses important artifacts from the city's history, as well as an art gallery.
Mérida is the cultural and financial capital of the Yucatán Peninsula, as well as the capital city of the state of Yucatán. In recent years, two important science competitions were held in Mérida: the 2005 International Mathematical Olympiad and the 2006 International Olympiad in Informatics. In 2006 Mérida hosted the FITA Archery World Cup Final. Mérida also hosted the International Cosmic Ray Conference between 3-11 July 2007. The 40th International Physics Olympiad, IPhO 2009, was held in Merida, Yucatan, Mexico, from July 12 to 19, 2009.