October 14 is Indigenous Peoples’ Day in the United States. It’s a day to honor the history, the resilience, and the many cultures and traditions of American Indians.

Although it’s not a federal holiday, Indigenous Peoples’ Day is observed in several U.S. states and cities. U.S. president Joe Biden first issued a proclamation recognizing Indigenous Peoples’ Day in 2021 and has done so every year since then.

Indigenous Peoples’ Day occurs the second Monday in October, the same day as Columbus Day, which has been a federal holiday since 1937. One reason for this is to recognize that American Indians were in the Americas for thousands of years before Italian explorer Christopher Columbus first set foot there. Another reason is to acknowledge that Columbus and other Europeans were responsible for the mistreatment and deaths of thousands of Indigenous peoples.

“This day is about reclaiming histories,” said Kyle Mays, an associate professor of American Indian Studies at the University of California, Los Angeles, told the Associated Press. “It’s acknowledging the history of dispossession [loss of land and culture] and violence against Indigenous people.”

One way to observe Indigenous Peoples’ Day is to learn more about Indigenous peoples. With 574 federally recognized tribes in the United States, each with its own history, culture, and traditions, it can be hard to know where to start. One idea is to start where you live. If you’re in the United States, find out which Indigenous peoples live or lived where you now live and learn about their history.