Archaeologists were surprised to find a stash of 3,000-year-old quinoa seeds while surveying a construction site in Ontario Canada. Up to that point, the South American grain from the same time period had been documented only as far north as Kentucky. Scientists think a previously unknown Indigenous trade route could have brought the quinoa to Canada. Other traditional trade routes are well-documented. Abalone and other ocean sea shells are important to tribes in the landlocked Southwest. The Three Sisters—corn, beans and squash—originally made their way to Native farm fields from Central America. We’ll learn the history of Indigenous trade routes and how they relate to today’s commerce and customs.