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Sault Sainte Marie, city, Canada

(Encyclopedia)Sault Sainte Marie so͞o sānt mərēˈ [key], city (1991 pop. 81,476), S Ont., Canada, on the St. Marys River opposite Sault Ste Marie, Mich. A bridge connects the two cities. Sault Ste Marie is an i...

dark matter

(Encyclopedia)dark matter, material that is believed to make up nearly 27% of the mass of the universe but is not readily visible because it neither emits nor reflects electromagnetic radiation, such as light or ra...

Teschen

(Encyclopedia)Teschen tĕˈshən [key], Czech Tĕšín, Pol. Cieszyn, former principality (c.850 sq mi/2,200 sq km), now divided between the Czech Republic and Poland. Teschen was its chief town. A part of Silesia,...

Europe

(Encyclopedia)CE5 Europe yo͝orˈəp [key], 6th largest continent, c.4,000,000 sq mi (10,360,000 sq km) including adjacent islands (2015 est. pop. 740,814,000). It is actually a vast peninsula of the great Euras...

hydrogen peroxide

(Encyclopedia)hydrogen peroxide, chemical compound, H2O2, a colorless, syrupy liquid that is a strong oxidizing agent and, in water solution, a weak acid. It is miscible with cold water and is soluble in alcohol an...

Dionysius the Elder

(Encyclopedia)Dionysius the Elder, c.430–367 b.c., tyrant of Syracuse. Of humble origin, he entered politics as a supporter of the poorer classes. Having prompted (400 b.c.) a measure to elect truly democratic ge...

Dionysius the Younger

(Encyclopedia)Dionysius the Younger, fl. 368–344 b.c., tyrant of Syracuse, son of Dionysius the Elder. He ended the war with Carthage and enlisted the support of the professional army. Neither gifted nor trained ...

Edward the Confessor

(Encyclopedia)Edward the Confessor, d. 1066, king of the English (1042–66), son of Æthelred the Unready and his Norman wife, Emma. After the Danish conquest (1013–16) of England, Edward grew up at the Norman c...

Edward the Elder

(Encyclopedia)Edward the Elder, d. 924, king of Wessex (899–924), son and successor of Alfred. He fought with his father against the Danes. At Alfred's death (899) Edward's succession was disputed by his cousin ...

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