'Tie a Yellow Ribbon Round the Ole Oak Tree' tops the charts. Astronomers announce they have discovered signs of a new family of planets. Al Capone's vault opened. 'Annie' debuts. Columbus Penitentiary burns. 'The Red Baron' is shot down. Mark Twain dies. King Henry VII dies.

The Columbine Massacre occurs. Deepwater Horizon Oil Platform explodes. Korean Airlines plane shot down. Apollo 16 lands on moon. French Revolutionary Wars begin.

The Captain and Tennille hit the pop charts. Truck bomb destroys federal building in Oklahoma. Waco, Texas siege ends. Bobbi Gibb runs the Boston Marathon. The First Boston Marathon is held. Bride of Frankenstein premeires. The Revolutionary War begins.

Dick Clark dies. Grace Kelly marries. Superman debuts. First game played at Yankee Stadium. Earthquake strikes San Francisco. Paul Revere begins his famous ride.

Eddie Cochran dies. Mustang unveiled. Yugoslavia surrenders to Germany. Bay of Pigs invasion begins. Daffy Duck makes his debut. MGM founded.

A gunman kills 32 at Virginia Tech. Apollo 16 launches. Martin Luther King Jr. pens his 'Letter from Birmingham Jail.' George Washington leaves for New York. Abraham Lincoln signs bill ending slavery. Harriet Quimby flies across the English Channel.

Two bombs explode at the finish line of the Boston Marathon. President Abraham Lincoln dies. The Titanic sinks. Hibernia Bank robbed by SLA. Yamasee War begins.

President Abraham Lincoln is shot. Two Blackhawk helicopters shot down over Northern Iraq. Space Shuttle Columbia lands. The Titanic collides with an iceburg and sinks. The Black Sunday dust storm occurs. The Grapes of Wrath is first published. Webster's Dictionary first published.

Tiger Woods wins his first major. The Great Chicago Flood occurs. Apollo 13 has power supply malfuntion. Jefferson Memorial dedicated. Fort Sumter falls. Thomas Jefferson born.

Bill Haley and His Comets record 'Rock Around the Clock.' Martin Luther King Jr. arrested and jailed. Harold Washington elected Mayor. President Franklin D. Roosevelt dies. Salk vaccine declared safe.