St. Knut's Day in Finland and Sweden
1797 – French Revolutionary Wars: A naval battle off the coast of Brittany between two British frigates and a French ship of the line ended with over 900 deaths when the latter ran aground.
1910 – The first public radio broadcast, a live performance of Cavalleria rusticana from the Metropolitan Opera House in New York City, was sent over the airwaves.
1915 – About 30,000 people in Avezzano, Italy—96% of its population—were killed when an earthquake struck the region.
1968 – American singer Johnny Cash recorded his landmark album At Folsom Prison live at the Folsom State Prison in California.
2000 – Steve Ballmer (pictured) replaced Bill Gates as Chief Executive Officer of Microsoft.