Region: China · Coordinates: 37.592, 107.595 · 3 events
| Year | Source | Account |
|---|---|---|
| AD 702 | Old Book of Tang (Jiu Tangshu), Annals | The Turks invaded Yanzhou and Xiazhou, killing officials and people and plundering. |
| AD 786 | Old Book of Tang (Jiu Tangshu), Annals | The Tibetans took Yanzhou and then also took Xiazhou and Yinzhou. |
| AD 793 | Old Book of Tang (Jiu Tangshu), Annals | Dezong had the walls of Yanzhou rebuilt; after this, border incursions ceased. |