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Manhattan Project

(Encyclopedia)Manhattan Project, the wartime effort to design and build the first nuclear weapons (atomic bombs). With the discovery of fission in 1939, it became clear to scientists that certain radioactive materi...

Kiaochow

(Encyclopedia)Kiaochow jēouˈjōˈ [key], former German territory, area c.200 sq mi (520 sq km), along the southern coast of Shandong prov., China. Its administrative center was the city of Qingdao. Germany leased...

Bush, George Walker

(Encyclopedia)Bush, George Walker, 1946–, 43d President of the United States (2001–9), b. New Haven, Conn. The eldest son of President George H. W. Bush, he was was raised in Texas and, like his father, attende...

United Nations

(Encyclopedia)CE5 CE5 United Nations (UN), international organization established immediately after World War II. It replaced the League of Nations. In 1945, when the UN was founded, there were 51 members; 193...

child labor

(Encyclopedia)child labor, use of the young as workers in factories, farms, mines, and other facilities, especially in work that is physically hazardous or morally, socially, or mentally harmful, involves a form of...

Anzus Treaty

(Encyclopedia)Anzus Treaty ănˈzəs [key], defense agreement signed in 1951 by Australia, New Zealand, and the United States. The name Anzus is derived from the initials of the three signatory nations. As a result...

SI, abbreviation for the International System of Units

(Encyclopedia)SI: see International System of Units. ...

Henderson, Arthur

(Encyclopedia)Henderson, Arthur, 1863–1935, British statesman, organizer and leader of the British Labour party. In early life he was an ironworker and a labor union leader. Elected (1903) to Parliament, he was c...

Bliss, Tasker Howard

(Encyclopedia)Bliss, Tasker Howard, 1853–1930, American army officer and statesman, b. Lewisburg, Pa., grad. West Point, 1875. He was (1898) chief of staff to Gen. James H. Wilson in the Puerto Rico campaign of t...

Bernstorff, Johann Heinrich, Graf von

(Encyclopedia)Bernstorff, Johann Heinrich, Graf von bĕrnsˈtôrf [key], 1862–1939, German diplomat. As ambassador to the United States (1908–17), he tried to conciliate American feelings toward Germany and re...