The word geology comes from the Greek (geo -, "the earth" and logos, "word", "reason"). Geology is one of the sciences of the earth. It studies the earth's crust, the matter that composes it, its mechanism of formation, the changes that occur on it and the structure that its surface has. Geology was essential in determining the age of the Earth, estimated to be about 4.6 billion years old, and in developing the theory called plate tectonics.
The Watergate scandal during President Nixon& 39;s presidency, Crazy Horse& 39;s last battle near Camp Sheridan and George Washington& 39;s first State of the Union address is covered in This Day in History video. This Day in History, January 8. E. Howard Hunt and G. Gordon Liddy were tried for their involvement in Watergate.
Helena(Gbt. 1. 250& 39;9& 34;; b. 40& 39;11& 34;, dr. 9& 39;; a. 4 4& 34; r., 4 6-pdrs.4 11-pdrs., 1 3& 34; r.)The first Helena was launched by the Newport News Shipbuilding Co., Newport News, VA., 30 January 1896; sponsored by Miss Agnes Belle Steele, daughter of the mayor of Helena; commissioned at New York Navy Yard 8 July 1897, Comdr.