Qa'a was a pharaoh of the First Dynasty, as well as the last of it too. He reigned for 33 years at the end of the 30th century BC. There is not much information left about Qa'a's reign, but it seems that he reigned for a long time (around 33 years). Several stone vessel inscriptions mention a second Sed festival for Qa'a, which points to at least 33 years of reign. Indeed, the first festival was usually not celebrated before 30 years of reign, and subsequent festivals could be repeated every third year. The Palermo Stone only mentions the year of coronation and some usual cultic events that were celebrated under every king. The numerous ivory tags dating to his reign also mention only typical arrangements, such as depicting and counting burial offerings and personal possessions of the king.