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Planck, Max

(Encyclopedia)Planck, Max mäks plängk [key], 1858–1947, German physicist. Seeking to explain the experimental spectrum (distribution of electromagnetic energy according to wavelength) of blackbody radiation, he...

vivisection

(Encyclopedia)vivisection vĭvˌĭsĕkˈshən [key], dissection of living animals for experimental purposes. The use of the term in recent years has been expanded to include all experimentation on living animals, r...

Glazer, Nathan

(Encyclopedia)Glazer, Nathan, 1923–2019, American sociologist, b. New York City, grad. City College, 1944. He became an editor at The Contemporary Jewish Record, later Commentary, and contributed to The Lonely Cr...

Thomas, Isaiah

(Encyclopedia)Thomas, Isaiah, 1749–1831, American patriot and printer, from Worcester, Mass. Thomas printed outspoken Whig editorials in the Massachusetts Spy, a newspaper that he helped to found. He fought at th...

Accademia della Crusca

(Encyclopedia)Accademia della Crusca äk-kädĕˈmēä dĕlˈlä kro͞osˈkä [key] [Ital.,=academy of the chaff], Italian literary society founded in Florence in 1582 to maintain the purity of the language. Leonar...

Penn, John, 1740?–1788, political leader in the American Revolution

(Encyclopedia)Penn, John, 1740?–1788, political leader in the American Revolution, signer of the Declaration of Independence, b. Caroline co., Va. A lawyer, Penn moved (1774) to North Carolina and was (1775–77,...

Convention on International Trade in Endangered Species of Wild Fauna and Flora

(Encyclopedia)Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), international agreement that aims to ensure that trade in specimens of wild animals and plants does not threate...

Knights of Columbus

(Encyclopedia)Knights of Columbus, American Roman Catholic society for men, founded (1882) at New Haven, Conn. (where its headquarters are still located), by Father Michael J. McGivney. Its mission is to encourage ...

Meech Lake Accord

(Encyclopedia)Meech Lake Accord, set of constitutional reforms designed to induce Quebec to accept the Canada Act. The Accord's five basic points, proposed by Quebec Premier Robert Bourassa, include a guarantee of ...

Grimké, Sarah Moore

(Encyclopedia)Grimké, Sarah Moore, 1792–1873, American abolitionist and advocate of women's rights, b. Charleston, S.C. She came from a distinguished Southern family. On a visit to Philadelphia, Sarah joined the...