The Mongol Empire's Postal Relay That Collapsed with Unity

In this episode, Lucas and Luna explore one of the Mongol Empire's most ingenious institutions: the Yam, a vast postal relay system stretching from the Caspian to the Pacific. But when the empire split into warring khanates, the Yam became a tool of division. We trace how Ögedei Khan expanded Chinggis Khan's original courier network into a state-funded infrastructure with 1,400 relay stations, each with horses, food, and yamchi riders. We reveal how the system was funded by a tax called the ulagh — a burden on conquered peoples — and how its breakdown in the 1260s accelerated the empire's fragmentation. Key figures include Ögedei, Khubilai Khan, Kaidu, and the Persian vizier Rashid al-Din, who documented the Yam's decline. We also discuss how the Yam was supposed to bind the empire together but instead became a source of conflict as rival khans disrupted relay lines and diverted resources. A little-known story of administrative collapse that explains why the Mongols couldn't hold their empire together. #MongolEmpire #YamSystem #ÖgedeiKhan #KhubilaiKhan #Kaidu #RashidalDin #PostalRelay #MongolPostalSystem #MongolCollapse #CentralAsia #MongolHistory #SteppeEmpire #MongolAdministration #SilkRoad #FexingoHistory #HistoryPodcast #MedievalHistory #EmpireFragmentation Keep every episode free: buymeacoffee.com/fexingo