This day (English: Anniversary of the Constitution) commemorates the Constitution of 1917, promulgated after the Mexican Revolution on February 5. Article 74 of the Mexican labor law (Ley Federal del Trabajo) provides that the first Monday of February (regardless the date) will be an official holiday in Mexico. This was a modification of the law made in 2005, effective since 2006; before, it was the February 5th regardless of the day.

Black History Month, also known as African-American History Month, is an annual observance in the United States, Canada, and the United Kingdom for remembrance of important people and events in the history of the African diaspora. It is celebrated annually in the United States and Canada in February^[1][2] and the United Kingdom in October.^[3]

Black History Month had its beginnings in 1926 in the United States, when historian Carter G. Woodson and the Association for the Study of Negro Life and History announced the second week of February to be "Negro History Week". This week was chosen because it marked the birthday of both Abraham Lincoln and Frederick Douglass.^[1] Woodson created the holiday with the hope that it eventually be eliminated when black history became fundamental to American history.^[4] Negro History Week was met with enthusiastic response; it prompted the creation of black history clubs, an increase in interest among teachers, and interest from progressive whites. Negro History Week grew in popularity throughout the following decades, with mayors across the United States endorsing it as a holiday.^[1]

National Freedom Day is a United States observance on February 1 honoring the signing by Abraham Lincoln of a joint House and Senate resolution that later became the 13th Amendment to the U.S. Constitution. President Lincoln signed the Amendment outlawing slavery on February 1, 1865, although it was not ratified by the states until later.

Major Richard Robert Wright Sr., a former slave, believed that there should be a day when freedom for all Americans is celebrated. While living in Philadelphia towards the end of his life, he invited local and national leaders to meet to organize a movement for a national holiday to commemorate Lincoln's signing of the 13th Amendment. The resulting National Freedom Association proposed having a memorial date to call attention to the continuing struggle for freedom for African-Americans. Since President Lincoln had signed the 13th Amendment on the first day of February, that date was chosen to celebrate National Freedom Day. The first commemoration took place on February 1, 1942, at Independence Hall. As it has every year since, the remembrance included laying a wreath at the Liberty Bell.