Image Credit: Anadolu via Getty Images October is a month of celebrations, from Halloween to Hispanic Heritage Month. A unique holiday celebrated every second Monday is Columbus Day. While the date varies, it has also come to be known as Indigenous Peoples' Day. This federal holiday is recognized by many state and government offices, leading some to close. In a prior proclamation on the White House website, former President Joe Biden stated, "I call upon the people of the United States to observe this day with appropriate ceremonies and activities.