We must confess that we take this notion about as seriously as we take MLK's Birthday. Not racist at all: just aware that such things are sops thrown to loyal constituents of the Dem party. Party favors that cost them nothing.
Note that there is no Asian History month, and no Hispanic History Month (although the story of the Spanish invading Central America, stealing the gold, and killing all the natives, would be an exciting and inspiring story for the kiddy-poos). No Swedish History month either - and no Indian History month (for either kind of Indian). There is no Arabic History Month, but coming soon, no doubt, to a government school near you. Gimme your vote and we'll give you a month. No vote - no month.
LaShawn has the best post on the subject, here and especially here.