We celebrate 5 de Mayo (Cinco de Mayo) because it marks Mexico’s surprising victory over the French army at the Battle of Puebla on May 5, 1862, and it has grown—especially in the U.S.—into a broader celebration of Mexican culture and heritage.

What actually happened on 5 de mayo?

  • On May 5, 1862, a smaller, poorly supplied Mexican force defeated a much larger and better equipped French army near the city of Puebla.
  • France, under Napoleon III, was trying to expand its empire in the Americas by taking control of Mexico.
  • The win did not end the war or stop France from later occupying Mexico, but it became a powerful symbol of resistance, courage, and national pride.
  • The Mexican general who led the defense was Ignacio Zaragoza, and the victory quickly became a point of unity for Mexicans.

Example: Think of a small underdog team beating a world champion in a single game—it may not decide the whole tournament, but everyone remembers that upset and celebrates it.

So why is it celebrated today?

In Mexico

  • 5 de mayo is mainly celebrated in and around Puebla, with parades, reenactments of the battle, music, and civic ceremonies.
  • It is not Mexico’s Independence Day; that’s September 16 (1810), which is a much bigger nationwide holiday.
  • Nationally, 5 de mayo is observed but is not a full federal holiday for everyone; it has more regional than national weight in daily life.

In the United States

  • Mexican communities in the U.S. began marking Cinco de Mayo in the 1860s, partly to show solidarity with Mexico’s fight against the French and as a symbol of freedom and democracy during the U.S. Civil War era.
  • Over time, especially in the late 20th century, it evolved into a broader celebration of Mexican‑American identity and culture, with festivals, music, and food.
  • Today, in many U.S. cities, it functions almost like a “Mexican heritage day,” even more prominent there than in much of Mexico.

How do people celebrate 5 de mayo now?

Common ways people celebrate include:

  • Cultural events: folk dancing, mariachi performances, community parades, historical reenactments of the Battle of Puebla.
  • Food and family: gathering to enjoy traditional Mexican dishes, visit local Mexican restaurants, and support Mexican‑owned businesses.
  • Education and pride: schools or libraries might host talks, exhibits, or book lists explaining the history and highlighting Mexican and Mexican‑American contributions.
  • In the U.S., bars and restaurants often market it heavily with themed events, which can sometimes overshadow the historical meaning and turn it into more of a party day.

Why do we celebrate it? (Big picture)

When people ask “why do we celebrate 5 de mayo,” they’re really asking about the meaning behind the party:

  • It honors an underdog victory that symbolized resistance to foreign invasion and imperial control.
  • It serves as a celebration of Mexican and Mexican‑American culture—history, food, music, and community pride—especially outside Mexico.
  • In the U.S., it has become a cultural touchstone similar to how St. Patrick’s Day represents Irish heritage: part history, part ethnic pride, part commercialized party.

At its core, 5 de mayo is celebrated not just for one battle, but for what that battle came to represent: courage against the odds, national identity, and the ongoing story of Mexican and Mexican‑American communities.