1372
Battle of La Rochelle: Castilian galleys destroy English fleet
A Franco-Castilian fleet under Ambrosio Boccanegra burned the English convoy carrying troops and treasure into Aquitaine off the Atlantic port. Edward III lost command of the Channel for the first time in three decades, a strategic reversal that isolated English garrisons in southwest France. French diplomacy had reshaped Iberia and naval power in a single Atlantic afternoon.
Ryukyu Kingdom enters the Ming tribute system
The island chain between Japan and Taiwan dispatched its first tribute mission to the Ming court, beginning a relationship that made tiny Ryukyu the most improbable trading hub in East Asia. Ryukyuan ships would carry Japanese silver south and Chinese silk north, their coral islands growing rich on the middleman trade.
Acamapichtli becomes the first Aztec tlatoani
The Mexica of Tenochtitlan elected their first dynastic ruler, a prince of Culhua-Toltec lineage whose coronation gave the young city-state the genealogical prestige it craved. Under Acamapichtli and his successors, the Aztecs would transform from tribute-paying vassals of Azcapotzalco into the dominant power of the Valley of Mexico, their island capital growing with each generation.
Ming forces fail to break the Mongol steppe
General Xu Da's ambitious three-pronged expedition into Mongolia was turned back by Koke Temur's cavalry at Tula River, the Ming army outmaneuvered on terrain that favored mounted steppe warriors. The Ming would not again attempt such deep strikes for a generation. Hongwu settled for a defensive frontier policy anchored on a rebuilt Great Wall strategy.