Japanese Emperor Kanmu relocates his empire's capital to Heian-kyō (now Kyoto).

Emperor Kanmu , or Kammu, was the 50th emperor of Japan, according to the traditional order of succession. Kammu reigned from 781 to 806, and it was during his reign that the scope of the emperor's powers reached its peak. His reign saw the transition from the Nara period to the Heian period.

Heian-kyō (平安京; lit. "peaceful/tranquil capital") was one of several former names for the city now known as Kyoto. It was the official capital of Japan for over one thousand years, from 794 to 1868 with an interruption in 1180.

October 22 is the 295th day of the year in the Gregorian calendar; 70 days remain until the end of the year.