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Leo I, Saint, pope

(Encyclopedia)Leo I, Saint (Saint Leo the Great), c.400–461, pope (440–61), an Italian; successor of St. Sixtus III. A Doctor of the Church, he was one of the greatest pontiffs of the early years of the church....

Leo X, pope

(Encyclopedia)Leo X, 1475–1521, pope (1513–21), a Florentine named Giovanni de' Medici; successor of Julius II. He was the son of Lorenzo de' Medici, was made a cardinal in his boyhood, and was head of his fami...

Arras, Treaty of

(Encyclopedia)Arras, Treaty of. 1 Treaty of 1435, between King Charles VII of France and Duke Philip the Good of Burgundy. Through it, France and Burgundy became reconciled. Philip deserted his English allies and r...

Llywelyn ap Iorwerth

(Encyclopedia)Llywelyn or Llewelyn ap Iorwerth , lo͞oĕlˈĭn [key] (Llywelyn the Great), 1173–1240, Welsh prince; grandson of Owain Gwynedd. He first proved his capacity by wresting (1194) N Wales from his unc...

Lorenzetti

(Encyclopedia)Lorenzetti lōrān-tsĕtˈtē [key], two brothers who were major Sienese painters. Pietro Lorenzetti, c.1280–c.1348, was first influenced by Duccio di Buoninsegna and Giovanni Pisano. His earliest k...

Murray, Albert Lee

(Encyclopedia)Murray, Albert Lee, 1916–2013, American essayist, novelist, and critic, b. Nokomis, Ala., grad. Tuskegee Institute (now Tuskegee Univ.; B.S., 1939) and New York Univ. (M.A., 1948). Murray enlisted i...

Las Casas, Bartolomé de

(Encyclopedia)Las Casas, Bartolomé de bärtōlōmāˈ dā läs käˈsäs [key], 1474–1566, Spanish missionary and historian, called the apostle of the Indies. He went to Hispaniola with his father in 1502, and e...

sage

(Encyclopedia)sage, any species of the large genus Salvia, aromatic herbs or shrubs of the family Labiatae (mint family). The common sage of herb gardens is S. officinalis, a strongly scented shrubby perennial, nat...

samarium

(Encyclopedia)samarium səmârˈēəm [key], metallic chemical element; symbol Sm; at. no. 62; at. wt. 150.36; m.p. 1,072℃; b.p. 1,791℃; sp. gr. 7.54 at 20℃; valence +2 or +3. Samarium is a lustrous silver-wh...

rail

(Encyclopedia)rail, common name for some members of the large family Rallidae, marsh and tropical forest birds that include the gallinule and the coot, two specialized rails. Rails are cosmopolitan in distribution,...