The Mara Salvatrucha gang originated in Los Angeles, set up in the 1980s by Salvadoran immigrants in the city's Pico-Union neighborhood who immigrated to the United States after the Central American civil wars of the 1980s.
Definition. The Sierra Club is the oldest grassroots environmental organization in the United States. The organization was founded in 1872 by a San Francisco group of professors, businessmen, and other professionals led by John Muir (Cohen 1985, 10).
Habropetalum dawei (JSTOR) (PROTA) represents an endemic genus. Sierra Leone is part of the Guinean Forests of West Africa biodiversity hotspot (CEPF). Portions of Sierra Leone are included in the Guinean Montane Forests (EoE) and the Western Guinean Lowland Forests (EoE) terrestrial ecoregions. Sierra Leone is located in the Northern Upper Guinea freshwater ecoregion (FEOW).