And beyond the steppe
- China Tang Muzong 820–824
- Iran Abbasid al-Ma'mun 813–833
- Korea Silla Later Silla 780–930
- Byzantium Amorian Michael II 820–829
Eastern steppe
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Culture · Tamim ibn Bahr travels the postal road of tents from Semirech'e to the Uyghur capital
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Environment · Central Mongolia turns drier, by the lake record, and stays so to 1300; the droughts of the Medieval Climate Anomaly (700–1300)
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Environment · Persistent drought in the Orkhon country through the last Uyghur decades, by the tree rings (783–850)
Climate and the steppe empires · Uyghur Khaganate
From the tree-ring record of the Uyghur period
Tibet
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Culture · The frontier between Tibet and the Tang is fixed by treaty and cut on a pillar in Lhasa
