ue was that Independence brought the abolition of slavery, cutting agricultural production. The lack of shipping made the city relatively isolated from Mexico City.From the 19th century until the latter 20th, the state�s economy was dependent on agriculture, fishing, logging and salt mining.
In September 1821, the city of Campeche proclaimed its adherence to the Plan of Iguala and the new Independent government of Mexico, forcing out its last Spanish governor a month later. At Independence, Campeche was one the two most important cities on the Yucat�n Peninsula, along with M�rida. There was political friction between the two. Campeche was the more liberal of the two, and supported the 1824 Mexican Constitution which established a Federal Republic. In 1824, Campeche�s representative proposed that the peninsula be divided into two states: M�rida and Campeche but this was not accepted. Political divisions intensified along with the nationwide struggle between Liberals and Conservatives .
Despite Campeche�s and M�rida�s differences, both were involved in an insurrection against Mexico City headed by Jer�nimo L�pez de Llergo in 1839 with the aim of creating an independent state of Yucat�n. After initial victories, L�pez de Llergo proclaimed the peninsula independent and in 1841, the Constitution of the Yucat�n was promulgated on federalist principles. Yucat�n independence did not solve the peninsula�s internal political problems. M�rida�s trade with Havana continued but Campeche�s trade with Mexico City was cut off. Campeche wanted to rejoin Mexico for this reason and Andr�s de Quintana Roo tried to work out a settlement between the two cities. Mexican president Santa Anna then sent an expedition to force the Yucat�n back into Mexico. More fighting came with the outbreak of the Caste War, in 1847, an indigenous rebellion that took place in Campeche and the rest of the Yucat�n. This and foreign pressure to pay debts, forced the Yucatan to formally
