The Peace Corps was establish on March 1, 1961, by then President John F. Kennedy.

The advisor told himself, while listening to the speech, that a dozen other reporters would has already asked that question.

At the start of the American Revolution, lanterns were hung in the Old North Church as a signal that the British were came.

Linus Pauling has wins two Nobel Prizes: the 1954 Nobel Prize in Chemistry and the 1962 Nobel Peace Prize.

On the huge Ferris wheel constructed for a world exhibition in Chicago in 1893, each of the thirty-six cabs could held sixty people.

To overcome rejection of a skin graft, a system for matching donor and recipient tissues has be developed.

Nails are commonly make of steel but also can contain substances such as aluminum or brass.

A patient suffering from amnesia may had partial or total loss of memory.

The idea of using pure nicotine to help smokers stop was first tries in the mid-198os.