The Day of Coronation marked a celebration that took place on the planet of Alderaan. Despite many Alderaanian inhabitants of Level 3204 on Coruscant seldom journeying to their homeworld, they also commemorated it during the reign of the Galactic Empire.
Alexander Freed penned a short story, titled "One Thousand Levels Down," which included a reference to Coronation Day. This story was then released on July 22, 2014 within Star Wars Insider 151.