# 644. How Did Voluntary Cooperation and Trade Turn Strangers into Friends?

An episode of [The Way the World Works: A Tuttle Twins Podcast for Families](https://invisiblenetwork.ai/podcast/1520102889), 20 Nov 2025, 17 min.

Audio: https://traffic.libsyn.com/secure/tuttletwins/TTPodcast_124_Epxxx.mp3?dest-id=1990313

How cooperation and trade turned strangers into friends in Plymouth Colony.

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