Who ruled
- Byzantium Marcian 450–457
- Hunnic Empire Attila 434–453
- unattached Theodoric I 419–451 · Thorismund 451–453
- Western Roman Empire Valentinian III 425–455
And beyond the steppe
- China Northern Wei Emperor Taiwu 423–452
- Iran Sasanian Yazdegerd II 438–457
- Korea Goguryeo Jangsu 413–491
- Byzantium Theodosian Marcian 450–457
Western steppe
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Battle on the Catalaunian Plains: Aetius and the Visigoths meet Attila, the Visigothic king Theodorid falls, and Attila withdraws behind his wagons
Battle of the Catalaunian Plains · Attila · Aetius · Ardaric · Theodoric I · Thorismund · Valamir
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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)
