Sed festival
Archaeological evidence in favor of a long reign for Pepi I includes his numerous building projects and many surviving objects made in celebration of his first Sed festival, which was meant to rejuvenate the king and was first celebrated on the 30th year of a king's rule. For example, numerous alabaster ointment vessels celebrating Pepi's first Sed festival have been discovered. They bear a standard inscriptions reading, "The king of Upper and Lower Egypt Meryre, may he be given life for ever. The first occasion of the Sed festival." Examples can now be found in museums throughout the world: