For example, one of the most important New Testament manuscripts, the Codex Sinaiticus, from the monastery of St. Catherine at Mt. Sinai, dates to the fourth century—and that is relatively early as far as New Testament codices go. See Leonard Greenspoon, “Major Septuagint Manuscripts—Vaticanus, Sinaiticus and Alexandrinus,” sidebar to “Mission to Alexandria,” BR 05:04.