Bienvenidos!  Welcome!  Cinco de Mayo or the Fifth of May commemorates the 1862 victory by Mexican forces, including ordinary citizens, over French soldiers.  The battle known as La Batalla de Puebla or The Battle of Puebla took place on May 5th.  It is a day marked by many Mexicans and those with Mexican ties as an important cultural event. Everyone likes a party or fiesta - so put on your party clothes and get ready to explore the roots of Hispanic culture by learning more about this day in the history of Mexico. intervention. Especially those from imperialist states bent on world conquest.