1262
Berke Khan and Hulagu clash at the Terek
The Golden Horde and the Ilkhanate, two fragments of Genghis Khan's empire, fought their first major battle along the Terek River in the Caucasus. Berke's army crossed the frozen river and caught Hulagu's troops off guard. The Mongol world war proved that even the steppe empire's unity had its limits.
Iceland submits to the Norwegian crown
After decades of blood feud among chieftains, the Althing agreed at Thingvellir to accept the sovereignty of Haakon IV of Norway. Four centuries of independent commonwealth ended. The sagas had already been written; their copying would continue under foreign kings. The submission was driven less by military pressure than by exhaustion, as the great families of Iceland had destroyed each other in civil wars.
Venetian and Genoese navies clash at Acre
The two Italian maritime republics, locked in a commercial war for control of eastern Mediterranean trade, fought a bloody naval battle in the harbor of Acre itself. Crusader Acre was caught between Christian trading rivals even as Mamluk armies massed on its borders, a grim metaphor for Latin Outremer's final years.
Mongke's Chinese advisors reform the postal system
The Yuan administration established a relay network of post stations across Eurasia, providing food, fresh horses, and lodging for imperial couriers and merchants with proper passes. A letter could travel from Karakorum to Tabriz in weeks. The network glued the Mongol world together. At its peak the system maintained over fourteen hundred stations, each stocked with horses, oxen, and provisions, connecting the empire's far-flung provinces.