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Walter of Henley

(Encyclopedia)Walter of Henley or Walter de Henley, fl. 13th cent., English writer on agriculture. His treatise Husbandry, written in Norman French in the mid-13th cent., was the great medieval authority in England...

Antigua and Barbuda

(Encyclopedia)CE5 Antigua and Barbuda ăntēˈgə, –gwə, bärbo͞oˈdə, –byo͞oˈ– [key], independent Commonwealth nation (2020 est. pop. 97,928), 171 sq mi (442 sq km), We...

Perón, Juan Domingo

(Encyclopedia)Perón, Juan Domingo hwän dōmēngˈgō pĕrōnˈ [key], 1895–1974, president of Argentina (1946–55; 1973–74). In 1971, President Lanusse, convinced that political order could not be achieve...

in vitro fertilization

(Encyclopedia)in vitro fertilization vēˈtrō, vĭˈtrō [key] (IVF), technique for conception of a human embryo outside the mother's body. Several ova, or eggs, are removed from the mother's body and placed in sp...

Tay-Sachs disease

(Encyclopedia)Tay-Sachs disease tāˈ-săksˈ [key], rare hereditary disease caused by a genetic mutation that leaves the body unable to produce an enzyme necessary for fat metabolism in nerve cells, producing cent...

Mann, Tom

(Encyclopedia)Mann, Tom, 1856–1941, British labor leader and socialist. He was an organizer of the 1889 London dock strike, which was an important step in the unionization of unskilled English laborers. Secretary...

Shatsky, Stanislaus

(Encyclopedia)Shatsky, Stanislaus, 1878–1934, Russian educator. After graduating from Moscow Univ. and attending the Moscow Agricultural Institute, Shatsky organized (1905) a colony for workers' children known as...

Otis, Harrison Gray, 1837–1917, American soldier and journalist

(Encyclopedia)Otis, Harrison Gray, 1837–1917, American soldier and journalist, b. Marietta, Ohio. He was (1860) a member of the Republican national convention that nominated Abraham Lincoln for President, served ...

Adams, Henry Carter

(Encyclopedia)Adams, Henry Carter, 1851–1921, American economist, b. Davenport, Iowa. He developed an interest in public finance at Johns Hopkins and pursued this field during later studies in Germany. He taught ...

Zanardelli, Giuseppe

(Encyclopedia)Zanardelli, Giuseppe jo͞ozĕpˈpā dzänärdĕlˈlē [key], 1826–1903, Italian politician and premier (1901–3). As minister of justice (1881–83, 1887–91) he prepared a new penal code, which w...