•
1542: Hernan Cortés started his campaign in Cholula (now
Cholula, Puebla). At that time, Amerindian homosexuality behavior varied from region to region. Cortés on behalf of his majesty the King of Spain started talking to the locals ('''', translated from old Spanish) and established rules against sodomy. •
1569: An official
inquisition was created in Mexico City by
Philip II of Spain. Same-sex sexual acts were a prime concern, and the Inquisition inflicted stiff fines, spiritual penances, public humiliations, and floggings for what it deemed to be sexual sins. •
1982: Max Mejía, Pedro Preciado, and
Claudia Hinojosa became the first openly gay politicians to run unsuccessfully for seats in the
Congress of Mexico. •
1991: Mexico hosted a meeting of the
International Gay and Lesbian Association, the first meeting of the association outside Europe. •
1999: (August): The first meeting of lesbians and lesbian feminists was held in Mexico City. From this meeting, evolved an organized effort for expanded LGBT rights in the nation's capital. •
2000: Enoé Uranga, an openly lesbian politician, proposed a bill that would have legalized
civil unions in Mexico City. The local Legislature, however, decided not to enact the bill after widespread opposition from right-wing groups. •
2003: (29 April): A federal anti-discrimination law was passed and a national council was immediately created to enforce it. :(July): Amaranta Gómez became the first transgender woman to run unsuccessfully for a seat in the Congress of Mexico. •
2006: (9 November): Mexico City legalized
same-sex civil unions. •
2007: (11 January): The northern state of
Coahuila legalized same-sex civil unions. :(31 January): The nation's first same-sex civil union ceremony was performed in
Saltillo, Coahuila. •
2008: (September): The Mexico City Legislative Assembly passed a law, making it easier for transgender people to change their gender on their birth certificates. :(21 December): Mexico City's
Legislative Assembly passed a bill legalizing
same-sex marriage,
adoption by same-sex couples, loan applications by same-sex couples, inheritance from a same-sex partner, and the sharing of insurance policies by same-sex couples. •
2010: (4 March): The same-sex marriage law took effect in Mexico City. :(5 August): The
Supreme Court of Justice of the Nation, the highest
federal court in the country, voted 9–2 to uphold the constitutionality of Mexico City's same-sex marriage reform. Four days later, it upheld the city's adoption law. •
2011: (June): The
Constitution of Mexico was amended to prohibit discrimination based on, among other factors,
sexual orientation. :(28 November): Two same-sex couples were
married in
Kantunilkín,
Quintana Roo, after discovering that Quintana Roo's Civil Code does not specify gender requirements for marriage. •
2012: (January): Same-sex marriages were suspended in Quintana Roo pending legal review by Luis González Flores, the Secretary of State of Quintana Roo. :(April):
Roberto Borge Angulo, the
Governor of Quintana Roo, annulled the two same-sex marriages performed in Kantunilkín. :(5 December): The Supreme Court struck down an
Oaxaca state law that had limited marriage to one man and one woman for purposes of procreation. •
2013: (27 February): The first same-sex marriage licenses were issued in the state of
Colima, after officials cited the Federal Constitution, which prohibits discrimination due to sexual orientation, and the Supreme Court ruling that struck down Oaxaca state's same-sex marriage ban. :(22 March): The first
same-sex marriage occurred in Oaxaca. :(14 June): The Second Federal District Court of the State of Colima ruled that the State Civil Code was unconstitutional in limiting marriage to opposite-sex couples. :(1 July): The Third District Court of the State of
Yucatán ruled that two petitioners were able to marry. Martha Góngora, director of the Civil Registry of the state, said the decision would be reviewed and might be returned to the court. Jorge Fernández Mendiburu, defense counsel in the case, indicated that if the registrar refused to complete the marriage, the case would be brought before the Supreme Court with a request for the state law limiting marriage to one man and one woman to be declared unconstitutional. :(4 July): The state of Colima amended its Constitution to allow for same-sex civil unions. :(8 August): Two men became the first same-sex couple to legally marry in the state of
Yucatán. :(23 December):
Campeche legalized same-sex and opposite-sex civil unions. •
2014: (1 January): A law allowing for same-sex civil unions in
Jalisco took effect. :(11 February): The Congress of Coahuila legalized adoption by same-sex couples, by repealing Article 385-7 of the Civil Code. :(21 March):
Mexico declared, by presidential decree, 17 May as the National Day Against Homophobia. See also: "
International Day Against Homophobia, Biphobia and Transphobia". :(1 September): The Congress of Coahuila legalized
same-sex marriage, by changing the Civil Code of the state. •
2015: (26 February): The Constitutional Court of the State of Yucatán announced that it will decide on 2 March whether state prohibitions against same-sex marriage are in violation of the Federal Constitution and international agreements. :(2 March): The Constitutional Court of Yucatán dismissed the appeal for constitutional action to change the Civil Code. Supporters of amending the code promised to appeal the decision. :(3 June): The Supreme Court released a "jurisprudential thesis" expanding the definition of marriage to encompass same-sex couples as state laws restricting it were deemed unconstitutional and discriminatory. :(12 June): The state of Chihuahua legalized
same-sex marriage and adoption after the Governor announced that his administration would no longer oppose same-sex marriages within the state. The order was effective immediately. :(10 July): The Governor of
Guerrero instructed civil agencies to approve same-sex marriage licenses. :(21 July): The municipality of
Santiago de Querétaro stopped enforcing
Querétaro's same-sex marriage ban and began allowing same-sex couples to marry in the municipality. :(11 August): The Mexican Supreme Court ruled, in a 9-1 decision, that Campeche's ban on same-sex couples adopting children was unconstitutional. :(7 September): The Congress of Michoacán legalized domestic partnerships for same-sex couples. :(22 December):
Same-sex marriage became legal in the state of Nayarit. •
2016: (26 January): The Mexican Supreme Court unanimously struck down
Jalisco's same-sex marriage ban. :(5 May): Colima repealed its civil union law as well as its constitutional ban on same-sex marriage. :(12 May): The Congress of Jalisco complied with the Supreme Court decision and instructed all the
state's municipalities to issue same-sex marriage licenses. :(17 May): The Mexican President,
Enrique Peña Nieto, announced that he had signed an initiative to amend Article 4 of the
Mexican Constitution, which would legalize same-sex marriage nationwide. :(20 May): Same-sex marriage became legal in
Campeche, after the state Congress legalized such marriages in a 34-1 vote 10 days prior. :(12 June): Same-sex marriage and adoption became legal in the state of
Colima. :(23 June): A bill allowing for legal same-sex marriages and adoptions came into effect in
Michoacán. :(5 July): A reform to the Constitution of
Morelos, which
legalized same-sex marriage and adoption in the state, took effect. :(11 September): The head of
Veracruz's adoption agency announced that same-sex couples may adopt children jointly in the state. :(18 September): The municipality of
San Pedro Cholula, located in the state of
Puebla, announced that any same-sex couple who wishes to marry may do so in the municipality. :(23 September): The Mexican Supreme Court finalized the ruling in the adoption case against Campeche and issued a nationwide jurisprudence which binds all lower court judges to rule in favor of same-sex couples seeking adoption and parental rights. :(26 September): The state of Campeche lifted its same-sex adoption ban. :(22 February): The head of
Baja California's adoption agency announced that same-sex couples have the right to adopt in the state. :(28 February) The Supreme Court gave Chihuahua 90 days to amend its Civil Code to reflect the recent legalization of same-sex marriage in the state. :(26 April): The head of Querétaro's adoption agency confirmed that same-sex couples may adopt in the state. :(31 May): The Supreme Court dismissed the appeal against the March 2015 Yucatán Constitutional Court ruling. :(11 July): The Supreme Court struck down
Chiapas' same-sex marriage ban, legalizing same-sex marriage in the state. :(13 July): The Michoacán Congress approved a gender identity law. :(20 July): A gender identity law was approved in the state of Nayarit. :(1 August): The Supreme Court unanimously struck down
Puebla's ban on same-sex marriage. :(3 November): The State Government of
Baja California announced it would immediately cease to enforce its same-sex marriage ban, legalizing such marriages in the state. •
2018: (9 January): The
Inter-American Court of Human Rights ruled that same-sex marriage and the recognition of one's gender identity on official documents are human rights protected by the
American Convention on Human Rights. Mexico is a signatory to the Convention. :(15 May): The Mexican Supreme Court ordered
Sinaloa to legalize same-sex marriage within 90 days. :(1 July): The
2018 general elections resulted in the
National Regeneration Movement (MORENA), a pro-same-sex marriage left-wing party, winning the majority or plurality of legislative seats in 13 states where same-sex marriage has not yet been legalized. MORENA along with the pro-same-sex marriage
Labor Party also won an absolute majority in the
Chamber of Deputies and the
Senate. :(1 July): President-elect
Andrés Manuel López Obrador became the first Mexican President to mention LGBT people in his first public speech. "The state will stop being a committee at the service of a minority and will represent all Mexicans: rich and poor, rural and urban dwellers, migrants, believers and non-believers, human beings of all currents of thought and of all sexual preferences. We will listen to everyone, we will attend to everyone. We will respect everyone, but we will give preference to the most humble and the forgotten, especially the indigenous peoples of Mexico", he said. :(26 August): The Civil Registry of
Oaxaca began accepting applications for same-sex marriage licenses from throughout the state. :(19 October): A Mexican federal court ruled that Mexico must recognize same-sex marriages performed in Mexican consulates and embassies abroad as long as one partner is a Mexican citizen. :(6 November): The
Senate unanimously (110-0) passed a bill codifying certain court rulings pertaining to the legal rights of same-sex couples into law, namely social security benefits and the right to a widow or widower's pension. :(13 November): The state of
Coahuila passed a gender identity bill, allowing transgender individuals easier access to birth certificates reflecting their new legal gender. :(16 November): The Supreme Court ordered the state of
Tamaulipas to legalize same-sex marriage within 180 business days. :(28 November): The Chamber of Deputies approved the bill passed in the Senate earlier that month, in a unanimous 415-0 vote. •
2019: (14 February):
Zacatecas City, the capital city of the state of
Zacatecas, began issuing same-sex marriage licenses. :(19 February): Same-sex marriage became legal in the state of
Nuevo León. :(2 April):
Aguascalientes legalized same-sex marriage. :(25 April): The
Hidalgo Congress approved a gender identity law. : (8 May): The Supreme Court of Mexico ruled that it is unconstitutional to deny a same-sex couple the right to register their children with the Civil Registry. :(11 May): The Mexican Supreme Court extended widow/widower's pensions to same-sex couples in concubinage. :(17 May): President
Andrés Manuel López Obrador declared 17 May as the "National Day of Fighting Against Homophobia, Lesbophobia, Transphobia and Biphobia" () and presented a series of actions that the Mexican Government will implement in support of the LGBT community, such as labor inclusion actions that guarantee opportunities regardless of sexual orientation and gender identity, joint work with teachers to eradicate discrimination and the implementation of protocol of action against hate crimes. :(17 May): The state of
San Luis Potosí began authorizing legal gender changes for transgender people. :(11 June): Same-sex marriage became legal in
Hidalgo, after the state Congress legalized such marriages in an 18-2 vote. :(29 June): Same-sex marriage became legal in the northern state of
Baja California Sur. :(28 August): Same-sex marriage legislation passed the
Congress of Oaxaca. ==Recognition of same-sex relationships==