Three events, two births, and a death: December 12

Events:

1098 - First Crusade: Massacre of Ma'arrat al-Numan - Crusaders breach the town's walls and massacre about 20,000 inhabitants. After finding themselves with insufficient food, they resort to cannibalism.

1531 - Apparition of Our Lady of Guadalupe to Juan Diego in Mexico City.

2000 - The United States Supreme Court releases its decision in Bush v. Gore

Births:

1821 - Gustave Flaubert, French writer (d. 1880)

1863 - Edvard Munch, Norwegian expressionist painter (d. 1944)

Death:

1976 - Vinko Zganec, Croatian ethnomusicologist (b. 1890)