Dayan Khan (; Mongolian: Даян Хаан [ˈtajɴ ˈχaːɴ]), born Batumöngke (Middle Mongol: [b̥atʰʊ̆møŋkʰĕ], Modern Mongol: [paʰtmɵŋx]; Chinese: 巴圖蒙克 Bātúméngkè; 1474–1517) was a khagan of the Northern Yuan dynasty, reigning from 1480 to 1517. During his rule, he reunited the Mongols under Chinggisid supremacy. His reigning title, "Dayan", means "the whole" or "long lasting" in Mongolian language as he was the longest reigning khagan of the unified Mongols.
Dayan Khan's victory at Dalan Tergin reunified the Mongols and solidified their identity as Chinggisid people. His decision to divide the six tumens of Eastern Mongolia as fiefs for his sons created decentralized but stable Borjigin rule over the Mongolian Plateau for a century.
HistoryLayer draws the world as it was in any year from 123,000 BCE to
2026. Move the slider and the borders redraw for that year; the map
carries 23,890 events, 12,790 people, 837 wars and 13,183 cities, each
one readable in place. Signing in is optional and lets you keep what
you find.