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obliquity of the ecliptic

(Encyclopedia)obliquity of the ecliptic: see inclination. ...

(Encyclopedia)Ozarks, Lake of the, artificial lake, 93 sq mi (241 sq km), c.130 mi (210 km) long, central Mo., largest reservoir in the state; created by the impounding of the Osage River by Bagnell Dam. Its irregu...

Oratory, Congregation of the

(Encyclopedia)Oratory, Congregation of the [Lat. abbr., Cong. Orat.], in the Roman Catholic Church, founded in 1575, an association of secular priests organized into independent communities according to the rule wr...

Maccabees, Feast of the

(Encyclopedia)Maccabees, Feast of the: see Hanukkah. ...

Master of the Housebook

(Encyclopedia)Master of the Housebook (Meister des Hausbuchs), fl. 1475–1500, German graphic artist. The master is named for a series of vigorous and sophisticated drawings of everyday life found in the Hausbuch ...

Marne, battle of the

(Encyclopedia)Marne, battle of the, two important battles of World War I that are named for the Marne River. In the first battle (Sept. 6–9, 1914) the German advance on Paris was halted at the Marne by the Allies...

law of the sea

(Encyclopedia)law of the sea: see maritime law; sea, law of the; seas, freedom of the. ...

lily of the valley

(Encyclopedia)lily of the valley, common name for either of the two species of Convallaria, spring-blooming perennials of the family Liliaceae (lily family). C. majalis, the species usually in cultivation, is nativ...