The Codex Argenteus (Latin for "Silver Book/Codex") is a 6th-century illuminated manuscript, originally containing part of the 4th-century translation of the Christian Bible into the Gothic language. Traditionally ascribed to the Arian bishop Wulfila, it is now established that the Gothic translation was performed by several scholars, possibly under Wulfila's supervision. Of the original 336 folios, 188—including the Speyer fragment discovered in 1970—have been preserved, containing the translation of the greater part of the four canonical gospels.
https://en.wikipedia.org/wiki/Codex_Argenteus