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elementary particles
(Encyclopedia) CE5 elementary particles, the most basic physical constituents of the universe. The first subatomic particle to be discovered was the electron, identified in 1897 by J. J. Thomson. After the...history
(Encyclopedia)history, in its broadest sense, is the story of humanity's past. It also refers to the recording of that past. The diverse sources of history include books, newspapers, printed documents, personal pap...Shakespeare, William
(Encyclopedia) CE5 Shakespeare, William, 1564–1616, English dramatist and poet, b. Stratford-upon-Avon. He is widely considered the greatest playwright who ever lived. For about 150 years after his death ...physics
(Encyclopedia)physics, branch of science traditionally defined as the study of matter, energy, and the relation between them; it was called natural philosophy until the late 19th cent. and is still known by this na...American art
(Encyclopedia)American art, the art of the North American colonies and of the United States. There are separate articles on American architecture, North American Native art, pre-Columbian art and architecture, Mexi...Nigeria
(Encyclopedia) CE5 Nigeria nījĭrˈēə [key], officially Federal Republic of Nigeria, republic (2015 est. pop. 181,182,000), 356,667 sq mi (923,768 sq km), W Africa. It borders on the Gulf of Guinea (an arm of ...English literature
(Encyclopedia)English literature, literature written in English since c.1450 by the inhabitants of the British Isles; it was during the 15th cent. that the English language acquired much of its modern form. For the...Browse by Subject
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