The Babylonian Chronicles are a loosely-defined series of about 45 tablets recording major events in Babylonian history. They represent one of the first steps in the development of ancient historiography. The Babylonian Chronicles are written in Babylonian cuneiform and date from the reign of Nabonassar until the Parthian Period. The tablets were composed by Babylonian astronomers ("Chaldaeans") who probably used the Astronomical Diaries as their source. Almost all of the tablets were identified as chronicles once in the collection of the British Museum, having been acquired via antiquities dealers from unknown excavations undertaken during the 19th century. All but three of the chronicles are unprovenanced. The Chronicles provide the "master narrative" for large blocks of current Babylonian history. The chronicles are thought to have been transferred to the British Museum after 19th century excavations in Babylon, and subsequently left undeciphered in the archives for decades. The first chronicle to be published was BM 92502 (ABC1) in 1887 by Theophilus Pinches under the title "The Babylonian Chronicle." This was followed in 1923 by the publication of the Fall of Nineveh Chronicle (ABC 3), in 1924 by Sidney Smith's publication of the Esarhaddon Chronicle (ABC 14), the Akitu Chronicle (ABC 16) and the Nabonidus Chronicle (ABC 7), and in 1956 by Donald Wiseman's publication of four further tablets including the Nebuchadnezzar Chronicle (ABC 5). ABC – A.K. Grayson, Assyrian and Babylonian Chronicles (1975) CM – Jean-Jacques Glassner, Chroniques Mésopotamiennes (1993) (translated as Mesopotamian Chronicles, 2004) BCHP – I. Finkel & R.J. van der Spek, Babylonian Chronicles of the Hellenistic Period (not yet published) BM – British Museum Number Leo Oppenheim's translation of the Nabonidus Chronicle can be found in J. B. Pritchard (ed.) Ancient Near Eastern Texts Relating to the Old Testament (= ANET; 1950, 1955, 1969). The standard edition is A.K. Grayson, Assyrian and Babylonian Chronicles (= ABC; 1975; ).