Intertestamental Period

The interval of time between the writing of Nehemiah, perhaps the last book to be written in the Hebrew Scriptures (Old Testament), and the writing of 1 Thessalonians, the first book to be written in the Christian Scriptures (New Testament).

The interval covers circa 400 BC to 51 AD. Books that form the Apocrypha were written during this interval. Most mainline and liberal religious historians date the writing of the book of Daniel in the middle of the Intertestamental period, to about 165 BC.