Codex Hierosolymitanus

Codex Hierosolymitanus (also called the Bryennios manuscript or the Jerusalem Codex, often designated simply "H" in scholarly discourse) is an 11th-century (1056) Greek manuscript. It contains copies of a number of early Christian texts including the only complete edition of the Didache. It was written by an otherwise unknown scribe named Leo, who dated it 1056.