Tomorrow is "Cinco de Mayo"

Many mistakenly think it's Mexico's "independence day". It's not. (That’s September 16th)

Cinco de Mayo, (Spanish: “Fifth of May”) holiday celebrated in parts of Mexico and the United States in honour of a military victory in 1862 over the French forces of Napoleon III.

When in 1861 Mexico declared a temporary moratorium on the repayment of foreign debts, English, Spanish, and French troops invaded the country.
By April 1862 the English and Spanish had withdrawn, but the French, with the support of wealthy landowners, remained in an attempt to establish a monarchy in Mexico under Maximilian of Austria and to curb U.S. power in North America.

On May 5, 1862, a poorly equipped mestizo and Zapotec force under the command of General Ignacio Zaragoza defeated French troops at the Battle of Puebla, southeast of Mexico City; about 1,000 French troops were killed.

Although the fighting continued and the French were not driven out for another five years, the victory at Puebla became a symbol of Mexican resistance to foreign domination. The city, which was later renamed Puebla de Zaragoza, is the site of a museum devoted to the battle, and the battlefield itself is maintained as a park.

https://www.britannica.com/topic/Cinco-de-Mayo