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progressivism

(Encyclopedia)progressivism, in U.S. history, a broadly based reform movement that reached its height early in the 20th cent. In the decades following the Civil War rapid industrialization transformed the United St...

Taft, William Howard

(Encyclopedia)Taft, William Howard, 1857–1930, 27th President of the United States (1909–13) and 10th chief justice of the United States (1921–30), b. Cincinnati. Taft retired from public life and taught ...

reading, mental process

(Encyclopedia)reading, process of mentally interpreting written symbols. Facility in reading is an essential factor in educational progress, and instruction in this basic skill is a primary purpose of elementary ed...

Chagall, Marc

(Encyclopedia)Chagall, Marc märk shəgälˈ [key], 1887–1985, Russian painter. In 1907, Chagall left his native Vitebsk for St. Petersburg, where he studied under L. N. Bakst. In Paris (1910) he began to assimil...

Gell-Mann, Murray

(Encyclopedia)Gell-Mann, Murray gĕlˈ-män [key], 1929–2019, American theoretical physicist, b. New York City, grad. Yale 1948, Ph.D. Massachusetts Institute of Technology, 1951. He was associated with the Univ....

daylight saving time

(Encyclopedia)daylight saving time (DST), time observed when clocks and other timepieces are set ahead so that the sun will rise and set later in the day as measured by civil time. The amount of daylight on a given...

Diderot, Denis

(Encyclopedia)Diderot, Denis dənēˈ dēdərōˈ [key], 1713–84, French encyclopedist, philosopher of materialism, and critic of art and literature, b. Langres. He was also a novelist, satirist, and dramatist. D...

psychosomatic medicine

(Encyclopedia)psychosomatic medicine sīˌkōsōmătˈĭk [key], study and treatment of those emotional disturbances that are manifested as physical disorders. The term psychosomatic emphasizes essential unity of t...

Baldwin, Robert

(Encyclopedia)Baldwin, Robert, 1804–58, Canadian statesman, leader of the movement for representative government in Canada, b. York (now Toronto), Ont. His father, William Warren Baldwin (1775–1844), was a lead...

Ono, Yoko

(Encyclopedia) Ono, Yoko, 1933- , Japanese-American conceptual artist, songwriter, and recording artist, b. Tokyo, Japan. Ono’s father was a banker and her mother ...