Codex Sinaiticus (, ; Shelfmarks and references: London,
Brit. Libr., Additional Manuscripts 43725; Gregory-Aland nº
א [Aleph] or
01, [
Soden δ 2]) or "Sinai Bible" is one of the four
great uncial codices, an ancient, handwritten copy of the
Greek Bible. The codex is a celebrated historical treasure.