Pre-Columbian Era: This period encompasses all human existence in Americas before Europeans arrived. It includes diverse civilizations like Maya, Aztec, Inca etc., similar to how '1491' represents indigenous cultures pre-European contact.
Christopher Columbus: He was an Italian explorer who completed four voyages across the Atlantic Ocean, opening the way for widespread European exploration and eventual conquest of the Americas. His expeditions marked a turning point in world history.
Indigenous Peoples' Day: This is a holiday that celebrates and honors Native American peoples and commemorates their histories and cultures. It's a counter-celebration to Columbus Day, promoting native historical narrative.