1847

During the Mexican-American War, U.S. forces under Gen. Winfield Scott took control of Mexico City.

1901

President William McKinley died in Buffalo, New York, of gunshot wounds inflicted by an assassin eight days prior; Vice President Theodore Roosevelt succeeded him, becoming the youngest U.S. president at age 42.

2012

Fury over an anti-Muslim film ridiculing the Prophet Muhammad sparked violent clashes across the Muslim world.