The papyrus was a tax roll, but on its back is written a list of rulers of Egypt. It includes the mythical kings such as gods, demi-gods, and spirits, as well as human kings. As the papyrus was reused for the tax roll, it shows the list was not of great formal importance to the writer. The list is thought to have been used as an administrative aid. As such, the papyrus is not supposed to be biased against certain rulers and is believed to include all the kings of Egypt up through at least the 19th Dynasty.