Chemical compounds with barium, cobalt, and strontium are responsible to many of the vivid colors in fireworks.

Never in the history of humanity there have been more people living on this relatively small planet.

Prior to an extermination program earlier this century, alive wolves roamed across nearly all of North America.

The Yale Daily News is oldest than any other college newspaper still in operation in the United States.

The type of jazz known as "swing" was introduce by Duke Ellington when he wrote and recorded "It Don't Mean a Thing If It Ain't Got That Swing."

Doctors successfully using hypnosis during World War II to treat battle fatigue.

Although the name suggests otherwise, the ship known as Old Ironsides it was built of oak and cedar rather than iron.

J. H. Pratt used group therapy early in this century when he brought tuberculosis patients together to discuss there disease.

Every human typically have twenty-three pairs of chromosomes in most cells.

Because of the flourish with which John Hancock signed the Declaration of Independence, his name become synonymous with signature.