725
725 — China: Yi Xing invented a water-powered armillary sphere
2 events. The text is the source chronology verbatim; the terms are in Sources & licenses. The grey lines above and below are the surrounding 2 years.
| KoreaNorthern and Southern States period 698–918 | ChinaTang dynasty 618–907 | JapanNara period 710–794 | United States |
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- No events recorded for this year
| - Yi Xing invented a water-powered armillary sphere.
- The king of Khotan rebels but is immediately replaced with a Tang puppet by the Anxi Protectorate
- 723Princess Jincheng writes to Lalitaditya Muktapida of the Karkoṭa Empire asking for asylum. In response he contacts Zabulistan and forms an alliance against the Tibetan Empire.
- 724Wang Junchuo launches an attack on the Tibetan Empire and scores a victory
- 726Stag sgra khon lod of the Tibetan Empire attacks Gan Prefecture but most of their forces die in a snowstorm and the rest are mopped up by Wang Junchuo
- 726Turgesh attacks Qiuci
- 727Stag sgra khon lod and Cog ro Manporje of the Tibetan Empire and the Turgesh attack Qiuci and Gua Prefecture
| - No events recorded for this year
- 723三世一身法を定める。
- 724Emperor Shōmu was enthroned. Also, the site of the Taga Castle, near to modern Sendai, is founded.
- 727渤海使が初めて渡来。
| covered from 1607 |