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Rockefeller Center

(Encyclopedia)Rockefeller Center, complex of buildings in central Manhattan, New York City, between 48th and 51st streets and Fifth Ave. and the Ave. of the Americas (Sixth Ave.). The project was sponsored by John ...

rib

(Encyclopedia)rib, one of the slender, elongated, curved bones that compose the chest cage in higher vertebrates. Ribs occur in pairs, and are found in most vertebrates; however, in some lower vertebrates, includin...

Supreme Court, United States

(Encyclopedia)CE5 Supreme Court, United States, highest court of the United States, established by Article 3 of the Constitution of the United States. With the emergence of a working conservative majority,...

Alien and Sedition Acts

(Encyclopedia)Alien and Sedition Acts, 1798, four laws enacted by the Federalist-controlled U.S. Congress, allegedly in response to the hostile actions of the French Revolutionary government on the seas and in the ...

Root, Elihu

(Encyclopedia)Root, Elihu, 1845–1937, American cabinet member and diplomat, b. Clinton, N.Y. Admitted to the bar in 1867, he practiced law in New York City, became prominent in Republican politics, and was appoin...

protectorate, in international law

(Encyclopedia)protectorate, in international law, a relationship in which one state surrenders part of its sovereignty to another. The subordinate state is called a protectorate. The term covers a great variety of ...

cone, in mathematics

(Encyclopedia)CE5 Cone cone or conical surface, in mathematics, surface generated by a moving line (the generator) that passes through a given fixed point (the vertex) and continually intersects a given fixed c...

Continental Divide

(Encyclopedia)Continental Divide, the “backbone” of a continent. In North America, from N Alaska to New Mexico, it moves along the crest of the Rocky Mts., which separates streams with outlets to the west of th...

ellipse

(Encyclopedia)CE5 Ellipse ellipse, closed plane curve consisting of all points for which the sum of the distances between a point on the curve and two fixed points (foci) is the same. It is the conic section fo...

Frank, Jacob

(Encyclopedia)Frank, Jacob, c.1726–1791, Polish Jewish sectarian and adventurer, b. Podolia as Jacob Ben Judah Leib. He founded the Frankists, a heretical Jewish sect that was an anti-Talmudic outgrowth of the my...