Contained in this work are thirteen lists of saints’ days in the Syriac tradition. The oldest was based on a translation from the Greek of a list of martyrs, arranged by month and day of death, written somewhere in the East. The Syriac translators have added to this; for example, they have also added a chronological list of the martyrs of the East condemned by the Persians. The other twelve are all Syrian Orthodox lists, which will be of value to anyone interested in the history of the veneration of Syriac saints and its social implications. A useful source on the expansion of Eastern Christianity, the lists are classified by origin and by starting date.