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    When Worlds Collide presents a groundbreaking portrayal of what happened after Columbus, as the Old World began to encounter the New World. Host Ruben Martínez, Emmy Award-winning journalist, author of the acclaimed Crossing Over: A Mexican Family on the Migrant Trail (Picador) and a leading voice in the highly charged immigration debate, journeys through space and time to explore the rise of a new culture that would reshape not just Europe and the Americas in the 16th century, but the United States in the 21st century.

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