1246
Goryeo court commissions the Tripitaka Koreana
On their island refuge of Ganghwa, the Korean court ordered the carving of over eighty thousand wooden printing blocks containing the entire Buddhist canon. Finished in 1251, the Tripitaka Koreana was both a prayer for divine protection against the Mongols and the most accurate Buddhist text collection in East Asia.
Guyuk elected Great Khan
At a lavish kurultai near Karakorum attended by envoys from Korea to Georgia, Ogedei's son Guyuk was raised on a felt carpet as third Great Khan. His short reign was marked by drink, disease, and a bristling letter to the pope demanding submission. His death barely two years later plunged the empire into a succession crisis that shifted power from Ogedei's line to Tolui's descendants forever.
Prussian Confederation founded in Thorn
Knights and town magistrates in the Teutonic order's lands formed a league to defend their privileges against the order's increasingly heavy hand. Over decades the confederation would grow into a formidable political force that eventually invited Polish intervention. The tensions between colonist towns and the military-monastic government prefigured the broader late-medieval conflict between urban autonomy and feudal authority across northern Europe.
Yarligh system formalizes Mongol control of Russia
The Golden Horde issued yarlighs, or patent letters, to Russian princes, requiring them to travel to Sarai and prostrate themselves before the khan to receive permission to rule. The system humiliated Orthodox princes but preserved their local authority, creating a Mongol-Russian administrative hybrid that would last two centuries. Moscow's later rise owed much to its princes' skill at playing the yarligh system to their advantage.