From the Archives: 1968 Two students engage in a heated discussion over the U.S. policy in Vietnam as onlookers gather to watch.

Today

· 1923 ÷ The first U.S. dance marathon, held in New York City, ended when Alma Cummings set a world record of 27 hours on her feet.

· 1995 ÷ Singer Selena, 23, was shot to death in Corpus Christi, Texas, by the founder of her fan club, Yolanda Saldivar.

Tuesday

· 1853 ÷ Cincinnati, Ohio, became the first U.S. city to pay its firefighters a regular salary.

· 1970 ÷ President Nixon signed a measure banning cigarette advertising on radio and TV.

Wednesday

· 1917 ÷ President Woodrow Wilson asked Congress to declare war against Germany, saying, "The world must be made safe for democracy."

· 1932 ÷ Aviator Charles Lindbergh paid $50,000 ransom in a New York cemetary to a man who promised to return his kidnapped son.

Thursday

· 1860 ÷ The legendary Pony Express began service between St. Joseph, Mo., and Sacramento, Calif.

· 1996 ÷ Unabomber Theodore Kaczynski was arrested.

Friday

· 1818 ÷ Congress decided the U.S. flag would consist of 13 red and white stripes and 20 stars, with a new star to be added for every new state.

· 1968 ÷ Civil rights leader Martin Luther King Jr., 39, was shot to death in Memphis, Tenn.