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Zizka, John

(Encyclopedia)Zizka, John yän zhēshˈkä [key], d. 1424, Bohemian military leader and head of the Hussite forces during the anti-Hussite crusades of Holy Roman Emperor Sigismund. Before the Hussite Wars, which ga...

Rae, John

(Encyclopedia)Rae, John, 1813–93, Scottish arctic explorer, b. Orkney Islands. A physician in the employ of the Hudson's Bay Company in N Canada, Rae made (1846–47) a journey of exploration from Fort Churchill ...

Rainolds, John

(Encyclopedia)Rainolds or Reynolds, John both: rĕnˈəldz [key], 1549–1607, English clergyman and biblical scholar. He was a fellow (1568–86) of Corpus Christi College, Oxford, and later president (1598–1607...

Randolph, John

(Encyclopedia)Randolph, John, 1773–1833, American legislator, known as John Randolph of Roanoke, b. Prince George co., Va. He briefly studied law under his cousin Edmund Randolph. He served in the U.S. House of R...

Ray, John

(Encyclopedia)Ray or Wray, John, 1627–1705, English naturalist. He was extremely influential in laying the foundations of systematic biology. With his pupil Francis Willughby, he planned a complete classification...

Barbour, John

(Encyclopedia)Barbour, John bärˈbər [key], c.1316?–1395, Scottish poet. He was archdeacon of Aberdeen from 1355 until his death. His romance, The Bruce (1375), celebrating Scotland's emancipation from England,...

Roebuck, John

(Encyclopedia)Roebuck, John, 1718–94, English physician, chemist, and inventor. He acted as a chemical consultant to local industries in Birmingham and invented the lead chamber process of manufacturing sulfuric ...

Rolfe, John

(Encyclopedia)Rolfe, John rŏlf [key], 1585–1622, English colonist in Virginia. He reached the colony in May, 1610, and introduced (1612) the regular cultivation of tobacco, which became Virginia's staple. A wido...

Rolph, John

(Encyclopedia)Rolph, John rŏlf [key], 1793–1870, Canadian physician and politician, b. England. He studied law and medicine in England and served in the Legislative Assembly of Upper Canada (1824–30, 1836–37...

Sevier, John

(Encyclopedia)Sevier, John səvērˈ [key], 1745–1815, American frontiersman and political leader. He was born near the site of New Market, Va., the town he founded in his young manhood. In 1773 he moved with his...