When can we get rid of Black History Month?

Before you spazz out, I mean when can we actually put in the hispanic, black, indian, & asian perspectives in our history books? Last book I checked from my younger cousins they told the entire history of their state/country & decided to forget about the last 4 groups! No one asks about Phyllis Wheatley with literature, Benjamin Banneker for Architecture, Pontiac indian chief, the dakotahs or Julio cesar Chavez union organizer. We wouldn't be so darn separate or annoyed when you tried to get in on our subculture if this was normalized.