Chronicle P, known as Chronicle 22 in Grayson’s Assyrian and Babylonian Chronicles and Mesopotamian Chronicle 45: “Chronicle of the Kassite Kings” in Glassner’s Mesopotamian Chronicles is named for T. G. Pinches, the first editor of the text. It is a chronicle of the second half of the second millennium BC or the Kassite period, written by a first millennium BC Babylonian scribe.