The
Vaticanus Codex is said to be the oldest [extant vellum]
? manuscript. It and the Codex
Sinaiticus are the two oldest uncial
? manuscripts. They were probably written in the fourth century. The Vaticanus was placed in the Vatican Library at
Rome by Pope [Nicolas V]
?. in 1448
?, its previous history being unknown. It originally consisted in all probability of a complete copy of the
Septuagint and of the
New Testament. It is now imperfect, and consists of 759 thin, delicate leaves, of which the New Testament fills 142. Like the Sinaiticus, it is of the greatest value to Biblical scholars in aiding in the formation of a correct text of the New Testament. It is referred to by critics as Codex B.
Text from Easton Bible Dicionary of 1897
http://www.site-berea.com/dicionarios.html Easton Bible Dicionary ; Public Domain -- Copy Freely These Dictionary topics are from M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition, published by Thomas Nelson, 1897.