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Peter III, king of Aragón and king of Sicily

(Encyclopedia)Peter III (Peter the Great), 1239?–1285, king of Aragón and count of Barcelona (1276–85) and king of Sicily (1282–85); son and successor of James I. In 1280 he established Aragonese influence o...

conservation of natural resources

(Encyclopedia)conservation of natural resources, the wise use of the earth's resources by humanity. The term conservation came into use in the late 19th cent. and referred to the management, mainly for economic rea...

Rawlinson, Henry Seymour Rawlinson, 1st Baron

(Encyclopedia)Rawlinson, Henry Seymour Rawlinson, 1st Baron, 1864–1925, British general; son of Sir Henry Creswicke Rawlinson. He served in the Myanmar expedition of 1886–87, in the Sudan campaign (1898), and i...

Khalifa bin Hamad al-Thani

(Encyclopedia)Khalifa bin Hamad al-Thani, 1932–2016, emir of Qatar (1972–95). Khalifa was the son of Hamad bin Abdullah al-Thani, the second emir's heir apparent, but Hamad died (1948) before the emir. During t...

Nestorianism

(Encyclopedia)Nestorianism, Christian heresy that held Jesus to be two distinct persons, closely and inseparably united. In 428, Emperor Theodosius II named an abbot of Antioch, Nestorius (d. 451?), as patriarch of...

Ailly, Pierre d'

(Encyclopedia)Ailly, Pierre d' pyĕr dāyēˈ [key], 1350–1420, French theologian and writer, cardinal of the Roman Catholic Church. He was the teacher of John Gerson and was Gerson's predecessor as chancellor of...

Corbyn, Jeremy Bernard

(Encyclopedia)Corbyn, Jeremy Bernard, 1949–, British politician. A trade union organizer, he served on the Haringey District Council in London (1974–83) before he was first elected to Parliament, where he becam...

Sobotka, Bohuslav

(Encyclopedia)Sobotka, Bohuslav bōˈho͞osläf sōˈbätkä [key], 1971–, Czech politician. Center-left in political philosophy and a member of the Czech Social Democratic party (CSSD) from 1989, Sobotka was fir...

Rafsanjani, Hashemi

(Encyclopedia)Rafsanjani, Hashemi (Ali Akbar Hashemi Rafsanjani) älēˈ äkˈbär häshˈəmē räfˌsänjänˈē [key], 1934–2017, Iranian religious and political leader, president of Iran (1989–97). A Shiite...

Sullivan, Robert Baldwin

(Encyclopedia)Sullivan, Robert Baldwin, 1802–53, Canadian politician and judge, b. Ireland. He emigrated to Canada in 1819, became a lawyer, and was elected mayor of Toronto (1835). He became a member of the exec...