Joe Rogan Experience #2556 - Siddharth Kara · Aired Sep 22, 2026
Claim summary · not a verbatim quotation
Portuguese explorers invented the latine rig, a triangular sail that allowed ships to tack into the wind, which enabled them to move past the Canary Islands in the 1420s and 1430s.
The finding
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The Portuguese did not invent the lateen rig. The triangular sail was already long established in Mediterranean and Arab seafaring, and World History Encyclopedia notes the Portuguese caravel sail was inspired by Arab vessels such as the dhow. What Portugal did was apply that existing sail to the caravel, which let crews sail within about five points of the wind and beat home against northerly winds. The geography is also off: Europeans had reached the Canary Islands in the 1300s, and the barrier the Portuguese finally passed in 1434, after 12 years of failed attempts, was Cape Bojador farther south.
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Quick answer
Is it true that Portuguese explorers invented the latine rig, a triangular sail that allowed ships to tack into the wind, which enabled them to move past the Canary Islands in the 1420s and 1430s?
No, not as stated. The Portuguese did not invent the lateen rig. The triangular sail was already long established in Mediterranean and Arab seafaring, and World History Encyclopedia notes the Portuguese caravel sail was inspired by Arab vessels such as the dhow. Siddharth Kara said it (matched by voice) on Joe Rogan Experience #2556 - Siddharth Kara, aired Sep 22, 2026, at 49:10. The supporting source is worldhistory.org, linked below.
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