Grand Nephew. Prince Phillip's grandmother Victoria was the eldest sister of the last Empress of Russia, Alexandra.

Cenozoic. During the Cenozoic era mammals, like the Sabretooth Tiger, Mammoth, and Three-Toed Horses, ruled the earth.

U.S.S. Nautilus. The first crossing of the geographic North Pole by a ship was accomplished by the USS Nautilus on August 3, 1958.

It Was The Center Of The Earth. Jerusalem is a holy city for the Christian religion, as well as for Jewish and Muslim peoples.

U.S. And France. On December 20, 1803 the Louisiana Purchase was finalized, with the a total price to the United States of 15 million dollars.

Aircraft Construction. In 1927, Boeing Air Transport created the first airplane made specifically for passenger service.