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river blindness

(Encyclopedia)river blindness or onchocerciasis, disease caused by the parasitic nematode worm Onchocerca volvulus. The worm larvae are transmitted by the bites of blackflies (genus Simulium) that live in fast movi...

Grand River, river, Canada

(Encyclopedia)Grand River, c.165 mi (270 km) long, rising in the highlands of the Ontario Peninsula, S Ont., Canada, and flowing S past Kitchener and Brantford, then SE to Lake Erie at Port Maitland. It is navigabl...

River Brethren

(Encyclopedia)River Brethren, name used to designate certain Christian bodies originating in 1770, during a revival movement among German settlers in E Pennsylvania. In the 1750s, Mennonite refugees from Switzerlan...

Islam in Africa

(Encyclopedia)Islam in Africa, the development of the Muslim religion on the African continent. During Muhammad's lifetime a group of Muslims escaped Meccan persecution (615) by fleeing to Ethiopia, where the Negus...

Ubangi

(Encyclopedia)Ubangi o͞obängˈgē, yo͞obăngˈ– [key], Fr. Oubangui, river, c.700 mi (1,130 km) long, formed on the Congo (Kinshasa)–Central African Republic border, central Africa, by the confluence of the ...

Horn of Africa

(Encyclopedia)Horn of Africa, peninsula, NE Africa, opposite the S Arabia Peninsula. Also known as the Somali Peninsula, it encompasses Somalia and E Ethiopia and is the easternmost extension of the continent, sepa...

Limpopo, province, South Africa

(Encyclopedia)Limpopo, province (2011 pop. 5,404,868), 48,554 sq mi (125,754 sq km), NE South Africa. In 1994, under South Africa's post-apartheid constitution, Limpopo was created from the northern portion of the ...

Kasai, former province, Congo

(Encyclopedia)Kasai käsīˈ [key], former province, c.124,000 sq mi (321,160 sq km), S central Congo (Kinshasa). Luluabourg (present Kananga) was the capital. Between the Kasai and the Sankuru rivers the Kuba king...

Pool Malebo

(Encyclopedia)Pool Malebo, lakelike expansion of the Congo River, c.320 sq mi (830 sq km), along the Congo (Kinshasa)–Congo (Brazzaville) border, W central Africa, c.350 mi (560 km) from the Congo's mouth. It is ...

German East Africa

(Encyclopedia)German East Africa, former German colony, c.370,000 sq mi (958,300 sq km), E Africa. Dar es Salaam was the capital. German influence emerged in the area in 1884 when Carl Peters, the German explorer, ...