dc ♥ malcolm x
According to Keith A. Mayes, author of Kwanzaa: Black Power and the Making of the African-AMerican Tradition (2009), in 1968 "the Malcolm X Memorial Committee sent flyers and leaflets to businesses in the District urging them to recognize May 19 (the day he was born) by closing their stores for at least part of the day." While they were not successful, it is important to note that, at least in the late 1960s, Washingtonians were asking the City Council to declare 19 May as Malcolm X Day and to make it a city holiday.
Portland Street, in the Congress Heights neighborhood, was renamed Malcolm X Avenue. I don't yet know what year.
There's also a park at 16th & Euclid Streets, NW, that Washingtonians call Malcolm X Park and the National Park Service calls Meridian Hill Park. Here's the compromise:
Source: Congress Heights on the Rise; Malcolm X Park