Who ruled
- Byzantium Marcian 450–457
- Hunnic Empire Attila 434–453
- unattached Thorismund 451–453
- Western Roman Empire Valentinian III 425–455
And beyond the steppe
- China Northern Wei Emperor Wencheng 452–465
- Iran Sasanian Yazdegerd II 438–457
- Korea Goguryeo Jangsu 413–491
- Byzantium Theodosian Marcian 450–457
Western steppe
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Attila dies in the night after his marriage to Ildico; the Huns mourn him with their own blood and bury him by night
Also dated 454 (Marcellinus Comes): Prosper, Victor of Tunnuna and the chronicle of 511 agree on 453.
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Culture · Sogdian colonists found the first towns of Semirech'e, Suyab and Navaket among them, as estates of nobles (450–600)