National Library of Russia, Codex Syriac 1

National Library of Russia, Codex Syriac 1, designated by siglum A, is a manuscript of Syriac version of the Eusebian Ecclesiastical History.

[3] It is one of the two extant ancient Syriac manuscripts of the Eusebian Ecclesiastical History.

[3] According to the colophon, on folio 123 verso, the manuscript was written in the year 773 of the Seleucid era (462/1 A.D.) and the name of scribe was Isaac.

[2][5] According to the note on folio 1 recto the manuscript was presented to the convent of St. Mary Deipara by one Sahlun, a priest of Harran.

It is currently housed at the National Library of Russia (Cod.