Cinco de Mayo of course, celebrates the unlikely victory of Mexican forces over the invading French army at the Battle of Puebla on May 5th, 1862. The French under the leadership of Napoleon III invaded Mexico after President Benito Juárez suspended payments on foreign debt. The French eventually won a second Battle of Puebla, invaded Mexico City and briefly established a Second Mexican Empire under Maximiliano I, former Hapsburg Archduke. Fortunately for Juárez and the fledgling Mexican Republic, Maximialiano was captured and executed three years later and democratic rule restored.
Granted, the pineapple actually originated in South America (likely the area between Southern Brazil and Paraguay) and Cinco de Mayo does NOT celebrate Mexican Independence (1821) or the Mexican Revolution, fought some 50 years later, beginning in 1910 . . . but hey, my pineapple is finally ripe, it's a holiday, and I need a convenient excuse to celebrate the incredible generosity of BSD reader C.T. who not only sent "A Cookbook for Political Imagination" but also "Curiosity and Method: Ten Years of Cabinet Magazine". Cabinet is by far my favorite periodical. I've read ever issue except for #1, which I haven't been able to find after years of searching.
If you've never heard of it, check out Cabinet's website immaterial.net. The "Out of Site" link list guarantees a good time.
Gay love for geeks