When and by whom was the Book of Deuteronomy written?

One view from our community:

The books of the Pentateuch came into their final form probably during the latter part of the period 1441 through 1401 BC, with very minor alterations thereafter. This was the period of the Exodus wanderings during which they spent a good number of years at Kadesh-Barnea (as attested in the historical record and by pottery fragments found there).

Some have also suggested a strong possibility that Abraham may have written large portions of Genesis. This is certainly possible as writing was known to exist for centuries before his time. Moses then would have been the final editor. It is considered by many that Joshua wrote the epitaph on Moses life and death at the end of Deuteronomy, which would have been some time after Moses death in around 1401 BC.

Others hold that it was written much later, thus not written by Moses.