1 Peter

Date Written - A.D. 60-68
From 1 Peter 5:13 it is evident that Peter was in Babylon when he wrote this letter. However this does not give an exact location. It could be the Babylon in Mesopotamia but it could also be a military outpost in Egypt by the same name. It could also represent Rome which was understood as Babylon in a figurative way. (Revelation 17:5,9) Rome may be a very likely possibility as Mark is known to have been with Paul in Rome and Mark was with Peter when he wrote 1 Peter 5:13.

If Rome was the Babylon Peter refers to and the place of writing then the date would likely be between A.D. 60 and 68. There is indication that Peter was familiar with the letters of Ephesians and Colossians. That would establish the earlier date of A.D. 60 when these letters were written and A.D. 68 was the date when Peter was traditionally crucified.