seems a little ironic to me

According to my calendar, and several sale commercials on TV, tomorrow is Columbus Day.  Tomorrow is also, according to my calendar "Native American Day". This seems strangely ironic to me. Who decided it would be a fine idea to celebrate the life of the man who "discovered America" and opened up its resources to the rest of the world on the same day we honor the people Europeans murdered and stole from to aquire those resources. Couldn't we at least give them their own day?