Also, apparently, the Spaniards bartered cucumbers and watermelons with the Mandan Indians who began cultivating the crop in South Dakota.

This clip cannot be found on ouyangwulong's main clipcast. It is part
of a separate research project that Austin is undertaking on the
movement of food and culture through the spice trade and the silk road.

For more clips on this subject, you can check out the new Silk Road Cuisine Clipcast.