How a Forgotten Explorer’s Secret Mission Unlocked the Pacific

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December 1, 2025 • 35 mins

December 1, 1564. Spanish vessels left a secret port in Mexico about two weeks ago. Their goal: to sail across the Pacific and back, charting a new route for international trade, and giving Spain an edge against its chief colonial rival, Portugal. But today, when a storm hits, the smallest ship is separated from the rest of the fleet. Now, that ship, the San Lucas, is on its own. The following year, when the San Lucas makes it back to Mexico, against all odds, its pilot—a Black mariner—is accused of treason. How did the San Lucas—the smallest ship in the fleet—complete a near-impossible journey that would connect the world? And how did the trailblazing mariner Lope Martín get erased from the story? Special thanks to our guest, Andrés Reséndez, author of Conquering the Pacific: An Unknown Mariner and the Final Great Voyage of the Age of Discovery. ** This episode originally aired November 29, 2021. Get in touch: historythisweekpodcast@history.com Follow on Instagram: @historythisweek Follow on Facebook: ⁠HISTORY This Week Podcast⁠ To stay updated: http://historythisweekpodcast.com To learn more about listener data and our privacy practices visit: https://www.audacyinc.com/privacy-policy Learn more about your ad choices. Visit https://podcastchoices.com/adchoices

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