Part of the Codex Sinaiticus (as displayed in BibleWorks) this early text contains works like The Shepherd of Hermas as well as now more familiar Bible books.

Gavin has updated is fine simple description of the various Christian Bibles and how they came to be. Anyone who thinks they are a Bible student, and who could not write a decent essay on the development of the different Christian Bibles (which includes quite a lot of people with degrees in the field ;) should read it. For those who already know this is a fine short and easy to read article to point people towards for their education :)