Moravia. Christingle celebrations, first introduced in 1968, raise money for needy children.

Vitus Bering. The Bering Strait between Alaska and Russia is named for Danish-born explorer Vitus Bering.

Alfred Jodl. Alfred Jodl signed the German WWII surrender on May 7, 1945.

Czar Nicholas II. The Bolshevik murder of Czar Nicholas II and his family signaled the end of the 300-year reign of the House of Romanov.

October 2005. Hillary Rodham Clinton was the first First Lady to be elected to the U.S. Senate and was inducted into the National Women's Hall of Fame in October 2005.

Physics. Pierre and Marie Curie won the 1903 Nobel Prize in Physics for their work with radioactivity.