Monday was Indigenous Peoples’ Day, the holiday a growing list of jurisdictions recognize in place of Columbus Day. Indigenous Peoples’ Day dates back to 1989, when South Dakota became the first state to replace Columbus Day with it. President Joe Biden has officially recognized Indigenous Peoples’ Day for the past two years.
You’ll need an apostrophe to write the name of the holiday, but note that when you’re writing about Indigenous people, you should not use a possessive that implies they belong to a state or country. So it’s “Indigenous peoples of Mexico,” for example, instead of “Mexico’s Indigenous peoples.”