Black history is a 365 day thing to me. Even worthy of a daily thread.
Other than that, it is often the case that the facts related to the same people are repeated over and over again. At many middle and high schools, kids still don't read about the contributions of blacks until the chapter on slavery. If there even is such a chapter. Then when black history month comes around, the teachers either ignore it or give the students something to read on Dr. King or someone just as (important but) typical.
But here goes a site where well known and supposedly little known facts can be found. A lot of them are related to athletes/entertainers rather than intellectuals and so forth. During this shortest month of the year.
http://www.biography.com/blackhistory/