Corpus Scriptorum Historiae Byzantinae
The Corpus Scriptorum Historiae Byzantinae (CSHB; English: Corpus of Byzantine history writers), also referred to as the Bonn Corpus, is a monumental fifty-volume series of primary sources for the study of Byzantine history (c. 330–1453), published in the German city of Bonn between 1828 and 1897. Each volume contains a critical edition of a Byzantine Greek historical text, accompanied by a parallel Latin translation.
Source: Wikipedia — Corpus Scriptorum Historiae Byzantinae (CC BY-SA 4.0)