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Launch of Cortés’s brigantines

28 April 1521 — Thirteen brigantines, sailing ships built in Tlaxcala under Martín López with Indigenous carpenters and carried in pieces over the mountains, were launched at Texcoco. They gave the besiegers control of the lake and broke through Nezahualcoyotl’s dike.

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Map: Launch of Cortés’s brigantines, 28 April 1521
28 APRIL 1521 · CLIMATE AND INNOVATION: THE NORSE AND THE AZTECS, C. 790–1521

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Climate and Innovation: The Norse and the Aztecs, c. 790–1521
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