Who ruled
- First Göktürk Khaganate Mukan Khan 553–572
- Sasanian Persia Khosrow I 531–579
- Western Göktürk Khaganate Istemi 552–576
And beyond the steppe
- China Northern Qi Emperor Wenxuan 550–559 · Western Wei Emperor Gong 554–556
- Iran Sasanian Khosrow I 531–579
- Korea Goguryeo Yangwon 545–559
- Byzantium Justinian Justinian I 527–565
Eastern steppe
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Environment · Late Antique Little Ice Age: the cold phase the Altai tree rings define from 536 to about 660 (536–660)
Climate and the steppe empires · First Göktürk Khaganate · Avars
The coldest decade in the Altai is the 540s
Western steppe
China
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The Rouran who fled to the Western Wei are handed to Mukan's envoys at his request; some three thousand are killed outside the Qingmen gate of Chang'an
The Qingmen Executions (555) · Mukan Khan · Rouran Khaganate · Issik Khan · Anagui · Hegemony Wars in Northern China
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summer · The Qi emperor rides from the White Road with five thousand light horse, catches the Rouran at Huaishuo and at Woye, and takes more than twenty thousand people
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Technology · The Qi levy a million eight hundred thousand men and carry the wall from Xiakou north of Youzhou to Hengzhou, over nine hundred li; front and rear the Qi walls run three thousand li
Northern Qi · Issik Khan · First Göktürk Khaganate
The emperor had ridden the frontier himself in 554 to choose the line
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The Western Wei seize Dengshuzi and three thousand Rouran at Mukan's request and hand them to the Göktürk envoys
The Qingmen Executions (555) · Western Wei · Yuwen Tai · Dengzhu · Mukan Khan · Mukan's Destruction of Dengshuzi (553–555)
Byzantium
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Technology · Byzantium has silkworms of its own, smuggled from the east by two Sogdians through the young khaganate