Mount Pleasant is a neighborhood in Northwest Washington DC. The land was granted to James Holmead by Charles Calvert, 5th Baron Baltimore in 1727, and Holmead named the state Pleasant Plains. In 1791, Pleasant Plains became part of Washington County, and, after the American Civil War, landowner Samuel P. Brown sold his land in parcels, resultign in the development of Mount Pleasant into Washington's first streetcar suburb during the 1870s. In 1901, 16th Street NW was extended north of Florida Avenue, establishing Mount Pleasant's boundary. From 1900 to 1925, many middle and upper-middle-class apartment buildings were built in Mount Pleasant. By 1927, all homeowners in the neighborhood had signed restrictive covenants forbidding sale to African-Americans, but the US Supreme Court struck down the covenants in 1948. After African-Americans began moving to the neighborhood in 1950, and especially after the 1968 Washington DC riots, Mount Pleasant experienced white flight. By 1970, Mount Pleasant was 65% Black, and, from the 1960s to 1980s, a large Salvadoran community formed there. From the 1970s to 1990s, the neighborhood suffered from the crack epidemic, and several buildings were destroyed in the 1991 Washington DC riot after a Black policewoman shot a Salvadoran man. During the 21st century, Mount Pleasant experienced gentrification, and, from 2000 to 2010, the white population increased from 22% of the total to 46.7%, while Blacks formed 26%, Hispanics 25%, and Asians 5.6%.