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Shrove Tuesday

(Encyclopedia)Shrove Tuesday, day before Ash Wednesday (the beginning of Lent). In the Latin countries it is the last day of the carnival, called by the French Mardi Gras. ...

Cambrian period

(Encyclopedia)Cambrian period [Lat. Cambria=Wales], first period of the Paleozoic geologic era (see Geologic Timescale, tablegeologic timescale, table) extending from approximately 570 to 505 million years ago. It ...

Normandy campaign

(Encyclopedia)Normandy campaign, June to Aug., 1944, in World War II. The Allied invasion of the European continent through Normandy began about 12:15 a.m. on June 6, 1944 (D-day). The plan, known as Operation Over...

sidereal time

(Encyclopedia)sidereal time (ST), time measured relative to the fixed stars; thus, the sidereal day is the period during which the earth completes one rotation on its axis so that some chosen star appears twice on ...

Epiphany

(Encyclopedia)Epiphany ĭpĭfˈənē [key] [Gr.,=showing], a prime Christian feast, celebrated Jan. 6, called also Twelfth Day or Little Christmas. Its eve is Twelfth Night. It commemorates three events—the bapti...

White, Ellen Gould (Harmon)

(Encyclopedia)White, Ellen Gould (Harmon), 1827–1915, leader of the Seventh-day Adventists, b. Gorham, Maine. Converted at the age of 15 to the beliefs of the Adventists, she began to receive visions accepted as ...

Sahl, Mort

(Encyclopedia) Sahl, Mort, 1927-2021, American comedian and social commentator, b. Montreal, Canada, as Morton Lyon Sahl, Univ. of Southern Calirofnia (B.A., 1950). ...

uniformitarianism

(Encyclopedia)uniformitarianism, in geology, doctrine holding that changes in the earth's surface that occurred in past geologic time are referable to the same causes as changes now being produced upon the earth's ...

Orcagna

(Encyclopedia)Orcagna ärkäˈnyōlō [key], c.1308–1368, Florentine painter, sculptor, and architect, whose original name was Andrea di Cione. He was one of the leading artists of his day. According to Vasari, w...

Ingersoll, Robert Green

(Encyclopedia)Ingersoll, Robert Green, 1833–99, American orator and lawyer, b. Dresden, N.Y. The son of a Congregational minister who eventually settled in Illinois, Ingersoll was admitted (1854) to the bar and b...