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Ohio, river, United States

(Encyclopedia)Ohio, river, 981 mi (1,579 km) long, formed by the confluence of the Allegheny and Monongahela rivers in SW Pa., at Pittsburgh; it flows northwest, then generally southwest to enter the Mississippi Ri...

Civil War, in U.S. history

(Encyclopedia)Civil War, in U.S. history, conflict (1861–65) between the Northern states (the Union) and the Southern states that seceded from the Union and formed the Confederacy. It is generally known in the So...

El Dorado, city, United States

(Encyclopedia)El Dorado ĕl dərāˈdə [key]. <1> City (2020 pop. 17,756), seat of Union co., S cent...

San Bernardino, city, United States

(Encyclopedia)San Bernardino săn bûrˌnədēˈnō [key], city (1990 pop. 164,164), seat of San Bernardino co., S Calif., at the foot of the San Bernardino Mts.; inc. 1854. It is the center of a thriving metropoli...

open enrollment

(Encyclopedia)open enrollment, a policy of admitting to college all high-school graduates in an effort to provide a higher education for all who desire it. To critics it means an inevitable lowering of standards as...

Durango, state, Mexico

(Encyclopedia)Durango do͞orängˈgō [key], state, 47,691 sq mi (123,520 sq km), N central Mexico. The city of ...

Hidalgo, state, Mexico

(Encyclopedia)Hidalgo ēᵺälˈgō [key], state, 8,058 sq mi (20,870 sq km), central Mexico. Pachuca de Soto is the capital. Cross...

Pará, state, Brazil

(Encyclopedia)Pará pəräˈ [key], state (1996 pop. 5,552,783), 474,896 sq mi (1,229,981 sq km), N Brazil, in the lower Amazon River basin bordering on the Guianas and the Atlantic Ocean. Belém is the capital. Mo...

Paraíba, state, Brazil

(Encyclopedia)Paraíba pərīēˈbə [key], state (1991 pop. 3,201,114), 21,765 sq mi (56,371 sq km), NE Brazil, on the Atlantic Ocean. The capital is João Pessoa. The state extends inland from the Atlantic to the...

Paraná, state, Brazil

(Encyclopedia)Paraná pərənäˈ [key], state (1996 pop. 8,985,981), 77,048 sq mi (199,554 sq km), S Brazil, on the borders of Paraguay and Argentina and the Atlantic Ocean. The capital is Curitiba. After coffee, ...