[1] What now constitutes the head of the municipality of Mérida, was a pre-Hispanic Itza Mayan town called T-hó (Yucatec Maya language meaning "five hills"), which was founded around the 12th century AD.

[3] In the first year of the conquest, Montejo ordered the establishment of 54 encomiendas in favor of his soldiers and confirmed the three principal municipalities to be Mérida, Valladolid, and San Francisco de Campeche.

[6] Yucatán declared its independence from the Spanish Crown in 1821[1] and in 1825, the area was distributed into 15 administrative partitions including Bacalar, Campeche, Hecelchakán, Hunucmá, Ichmul, Isla del Carmen, Izamal, Lerma, Mama, Mérida, Oxkutzcab, Seibaplaya, Sotuta, Tizimín and Valladolid.

Finally in 1846 the peninsula agreed to reintegrate into Mexico[8] but the outbreak of the Caste War, in 1847, an indigenous rebellion that took place throughout the Yucatán, delayed the full implementation until 1849.

[9] The Constitution of 1850, redrafted the administrative divisions and made headquarters for the 17 partitions at: Bacalar, Bolonchenticul, Campeche, Espita, Hequelchakan, Isla del Carmen, Izamal, Maxcanú, Mérida, Motul, Peto, Seibaplaya, Sotuta, Tekax, Ticul, Tizimin, and Valladolid.

[11] The most notable include Caucel, Chablekal, Cholul, Chuburná de Hidalgo, Cosgaya, Dzityá, Dzununcán, Komchén, Molas, San José Tzal, Sierra Papacal and Sitpach.