This book shows that the development of Greek chronicle writing from the fourth to the seventh century was not linear. Whilst the impact of the chronicle of Eusebius of Caesarea was great, subsequent writers corrected his errors and incorporated the third-century chronographies by Hippolytus and Julius Africanus into the framework shaped by Eusebius. As a consequence, chronographies and not chronicles dominate in Greek literature. One innovation of the fourth century was to link computus (the calculation of the Easter date) and chronography, first visible in the work of Andreas, brother of Magnus (352), and later in that of Annianus (412). The direct impact of Annianus has been overestimated: unique in some of its core ideas, his work resurfaced only in the 560s, in the context of Justinian’s attempt to impose the Christmas date of 25 December on the church of Jerusalem. This controversy caused a flurry of works of chronography and computus to be written in the early seventh century. Besides this tradition, the book also uncovers a tradition of chronicles with a local focus, which shaped the chronicle of John Malalas. We argue that the source indications of Malalas deserve more credit than they are usually granted.