What mark the end of the Nara period in Japan

What marked the end of the Nara period was when  Emperor Kanmu moved the capital shortly after the death of the Empress Kōken in an attempt to remove the court from the intrigues and power plays of the Buddhist establishment at Nara.

Explanation:

operation overlord was the codename for the battle of normandy, the allied operation that launched the successful invasion of german-occupied western europe during world war ii. the operation was launched on 6 june 1944 with the normandy landings

this isn't a question and if you're going to list things be kind and use commas.