Indigenous Peoples’ Day is celebrated on the second Monday of October, to honor the cultures and histories of the Native American people. The day is centered around reflecting on their tribal roots and the tragic stories that hurt but strengthened their communities.

Halloween's origins can be traced back to the ancient Celtic festival known as Samhain, which was held on November 1 in contemporary calendars. It was believed that on that day, the souls of the dead returned to their homes, so people dressed in costumes and lit bonfires to ward off spirits.

Samhain is a Gaelic festival marking the end of the harvest season and beginning of winter or "darker-half" of the year. It is held on 1 November but with celebrations beginning on the evening of 31 October, since the Celtic day began and ended at sunset.

The Day of the Dead is a holiday traditionally celebrated on November 1 and 2, though other days, such as October 31 or November 6, may be included depending on the locality. It largely originated in Mexico, where it is mostly observed, but also in other places, especially by people of Mexican heritage elsewhere.