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The impeachment trial of Pres. Andrew Johnson, illustration from Frank Leslie's Illustrated Newspaper, March 28, 1868.

What If the President Is Impeached?

VAN, TURKEY - OCTOBER 25: A building and car ruined during the earthquake of Van-Ercis on October 25, 2011 in Van, Turkey. It is 604 killed and 4152 injured in Van-Ercis Earthquake.

What Is an Aftershock?

cloning. First cloned cat. First cloned companion animal. CC (copy cat) female domestic shorthair cat (b. Dec. 22, 2001) photo Jan. 18, 2002. Cloned at Texas A&M Univ. College of Vet. Med. & Biomedical Sciences. Reproductive cloning genetics DNA cc cat

CC, The First Cloned Cat

Vietnam War. U.S. President Lyndon B. Johnson awards the Distinguished Service Cross to First Lieutenant Marty A. Hammer, during a visit to military personnel, Cam Ranh Bay, South Vietnam, October 26, 1966. President Johnson

Vietnam War Timeline

Snowshoe hare (Lepus americanus) with its Summer coat on the left side and its winter coat on the right.

7 Animals That Turn White in Winter

The Battle of Gettysburg, July 1-3, 1863. (Civil War, Pennsylvania)

9 Worst Generals in History

Nero (Nero Claudius Caesar Augustus Germanicus) (ad 50-54) the fifth Roman emperor (ad 54-68), stepson and heir of the emperor Claudius.

Did Nero Really Fiddle as Rome Burned?

solid problem

geometry

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Greek geometry

In mathematics: Apollonius
…means of conics were called solid, while those solvable by means of circles and lines only (as assumed in Euclid’s Elements) were called planar. Thus, one can double the square by planar means (as in Elements, Book II, proposition 14), but one cannot double the cube in such a way,…
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