Instead of White History Month, we could divide the year across all the different European peoples. I could only think of 6 tidy and distinct groups, so that would be 2 months each a year. Anyone better versed in European ethnology can probably do a better job.
Germanic
Germans, Dutch, English, Scandinavians, Austrians
Romance
French, Italians, Spaniards, Portuguese, Romanians
Celtic
Irish, Scottish, Welsh, Bretons
Baltic
Lithuanians, Latvians
Greek
Greeks (including Greek Cypriots)
Finno-Ugric
Finns, Estonians, Hungarians