Constitution of 1857 in the context of "Freedom of assembly"

Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundaries with the Pacific Ocean to the west, the Caribbean Sea to the southeast, and the Gulf of Mexico to the east. Mexico covers 1,972,550 km (761,610 sq mi), and is the thirteenth-largest country in the world by land area. With a population exceeding 130 million, Mexico is the tenth-most populous country in the world and is home to the largest number of native Spanish speakers. Mexico City is the capital and largest city, which ranks among the most populous metropolitan areas in the world.

Human presence in Mexico dates back to at least 8,000 BC. Mesoamerica, considered a cradle of civilization, was home to numerous advanced societies, including the Olmecs, Maya, Zapotecs, Teotihuacan civilization, and Purépecha. Spanish colonization began in 1521 with an alliance that defeated the Aztec Empire, establishing the colony of New Spain with its capital at Tenochtitlan, now Mexico City. New Spain became a major center of the transoceanic economy during the Age of Discovery, fueled by silver mining and its position as a hub between Europe and Asia. This gave rise to one of the largest multiracial populations in the world. The Peninsular War led to the 1810–1821 Mexican War of Independence, which ended Peninsular rule and led to the creation of the First Mexican Empire, which quickly collapsed into the short-lived First Mexican Republic. In 1848, Mexico lost nearly half its territory to the American invasion. Liberal reforms set in the Constitution of 1857 led to civil war and French intervention, culminating in the establishment of the Second Mexican Empire under Emperor Maximilian I of Austria, who was overthrown by Republican forces led by Benito Juárez. The late 19th century saw the long dictatorship of Porfirio Díaz, whose modernization policies came at the cost of severe social unrest. The 1910–1920 Mexican Revolution led to the overthrow of Díaz and the adoption of the 1917 Constitution. Mexico experienced rapid industrialization and economic growth in the 1940s–1970s, amidst electoral fraud, the Tlatelolco massacre, and economic crises. The late 20th century saw a shift towards neoliberalism, marked by the signing of the North American Free Trade Agreement (NAFTA) in 1994, amidst unrest in Chiapas.

The history of the Catholic Church in Mexico dates from the period of the Spanish conquest (1519–21) and has continued as an institution in Mexico into the twenty-first century. Catholicism is one of many major legacies from the Spanish colonial era, the others include Spanish as the nation's language, the Civil Code and Spanish colonial architecture. The Catholic Church was a privileged institution until the mid nineteenth century. It was the sole permissible church in the colonial era and into the early Mexican Republic, following independence in 1821. Following independence, it involved itself directly in politics, including in matters that did not specifically involve the Church.

In the mid-nineteenth century the liberal Reform brought major changes in church-state relations. Mexican liberals in power challenged the Catholic Church's role, particularly in reaction to its involvement in politics. The Reform curtailed the Church's role in education, property ownership, and control of birth, marriage, and death records, with specific anticlerical laws. Many of these were incorporated into the Constitution of 1857, restricting the Church's corporate ownership of property and other limitations. Although there were some liberal clerics who advocated reform, such as José María Luis Mora, the Church came to be seen as conservative and anti-revolutionary. During the bloody War of the Reform, the Church was an ally of conservative forces that attempted to oust the liberal government. They also were associated with the conservatives' attempt to regain power during the French Intervention, when Maximilian of Habsburg was invited to become emperor of Mexico. The empire fell and conservatives were discredited, along with the Catholic Church. However, during the long presidency of Porfirio Díaz (1876–1911) the liberal general pursued a policy of conciliation with the Catholic Church; though he kept the anticlerical articles of the liberal constitution in force, he in practice allowed greater freedom of action for the Catholic Church. With Díaz's ouster in 1911 and the decade-long conflict of the Mexican Revolution, the victorious Constitutionalist faction led by Venustiano Carranza wrote the new Constitution of 1917 that strengthened the anticlerical measures in the liberal Constitution of 1857.

Ignacio Gregorio Comonfort de los Ríos (Spanish pronunciation: [iɣˈnasjo komoɱˈfoɾ ðe los ˈri.os]; 12 March 1812 – 13 November 1863), also known as Ignacio Comonfort, was a Mexican politician and soldier who was also president during La Reforma.

He played a leading role in the liberal movement under the Plan of Ayutla to overthrow the dictatorship of Santa Anna in 1855; he then served in the cabinet of the new president, Juan Álvarez. Comonfort was a moderate liberal and assumed the presidency when Álvarez stepped down after only a few months. The Constitution of 1857 was drafted during his presidency, incorporating changes enacted in individual laws of the Liberal Reform. The constitution was met with opposition from conservatives as its forceful anticlerical provisions undermined the economic power and privileged status of the Catholic Church as an institution. Most notably the Lerdo law stripped the Church's ability to hold property. The law also forced the breakup of communal land holdings of indigenous communities, which enabled them to resist integration economically and culturally. The controversy was further inflamed when the government mandated that all civil servants take an oath to uphold the new constitution, which left Catholic public servants with the choice between either keeping their jobs or being excommunicated.

Liberalism in Mexico was part of a broader nineteenth-century political trend affecting Western Europe and the Americas, including the United States, that challenged entrenched power. In Mexico, liberalism sought to make fundamental the equality of individuals before the law, rather than their benefiting from special privileges of corporate entities, especially the Roman Catholic Church, the military, and indigenous communities. Liberalism viewed universal, free, secular education as the means to transform Mexico's citizenry.

Early nineteenth-century liberals promoted the idea of economic development in the overwhelmingly rural country where much land was owned by the Catholic Church and held in common by indigenous communities to create a large class of yeoman farmers. Liberals passed a series of individual Reform laws and then wrote a new constitution in 1857 to give full force to the changes. Liberalism in Mexico "was not only a political philosophy of republicanism but a package including democratic social values, free enterprise, a legal bundle of civil rights to protect individualism, and a group consciousness of nationalism." Mexican liberalism is most closely associated with anticlericalism. Mexican liberals looked to the U.S. as their model for development and actively sought the support of the U.S., while Mexican conservatives looked to Europe.

José Santiago Vidaurri Valdez (July 24, 1809 – July 8, 1867) was a controversial and powerful governor of the northern Mexican states of Nuevo León and Coahuila between 1855 and 1864. He was an advocate of federalism.

In 1855, he supported the liberal Revolution of Ayutla, which overthrew the dictatorship of Antonio López de Santa Anna, the military strongman who dominated Mexican politics in the 1830s until his overthrow in 1855. Vidaurri stood by the liberal president Benito Juárez during the subsequent War of the Reform, a bloody civil war following Mexican conservatives' repudiation of the liberal government and the Constitution of 1857. During the war, Vidaurri commanded the liberal armies of the north. During the American Civil War (1861–65), Southern slave states had seceded from the United States and formed the Confederate States of America. Vidaurri sought advantageous trade relationships with the CSA, which bordered northern Mexico.