Columbus Day, also known as Indigenous Peoples’ Day in many communities,  takes place on October 11th in the United States.

You might be interested in The Best Online Resources About Christopher Columbus (& ‘Indigenous Peoples’ Day’).

Many monuments to him have been taken down in the past two years, so you might also want to check out The Best Resources For Teaching About Confederate Monuments.  I’ve put several resources related to those “take downs” on that list.