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Monroe Doctrine

(Encyclopedia)Monroe Doctrine, principle of American foreign policy enunciated in President James Monroe's message to Congress, Dec. 2, 1823. It initially called for an end to European intervention in the Americas,...

locomotive

(Encyclopedia)locomotive, vehicle used to pull a train of unpowered railroad cars. Richard Trevithick, a British engineer and inventor, built and operated (1803–4) the first successful steam engine locomotive f...

Solzhenitsyn, Aleksandr Isayevich

(Encyclopedia)Solzhenitsyn, Aleksandr Isayevich əlyĭksänˈdər ēsīˈəvĭch sôlˌzhənētˈsĭn [key], 1918–2008, Russian writer widely regarded as one of the greatest and most influential authors of the 20...

ocean

(Encyclopedia)ocean, interconnected mass of saltwater covering 70.78% of the surface of the earth, often called the world ocean. It is subdivided into four (or five) major units that are separated from each other i...

classification

(Encyclopedia)CE5 classification, in biology, the systematic categorization of organisms into a coherent scheme. The original purpose of biological classification, or systematics, was to organize the vast number...

book

(Encyclopedia)book. The word book has come to have many meanings, e.g., any collection of sheets of paper, wood, or other material sewn or bound together; a division of a written work (books of the Bible, books of ...

Zoroastrianism

(Encyclopedia)Zoroastrianism zôˌrōăsˈtrēənĭzəm [key], religion founded by Zoroaster, but with many later accretions. The religion's priests, successors to the pre-Zoroastrian Magi, acquired great power b...

Arctic Ocean

(Encyclopedia)Arctic Ocean, the smallest ocean, c.5,400,000 sq mi (13,986,000 sq km), located entirely within the Arctic Circle and occupying the region around the North Pole. The Arctic basin was almost wholly u...

Papal States

(Encyclopedia)Papal States, Ital. Lo Stato della Chiesa, from 754 to 1870 an independent territory under the temporal rule of the popes, also called the States of the Church and the Pontifical States. The territory...

Canadian literature, English

(Encyclopedia)Canadian literature, English, literary works produced in Canada and written in the English language. The essayist Northrop Frye is noted for his systematic classification of literature, presented in...