Textual redaction considerations:
• The “Syriac version” of the New Testament, which dates back to the second century A.D., states that Revelation was written during the reign of Nero making a date of 64-68 A.D.
• The “Muratorian Fragment,” dating back to 170-190 A.D., states that this work of John was written during the reign of Nero.
• The “Aramaic Peshitta” version has a remark that places its date prior to 70 A.D. The title page of Revelation states this work of John was written right after the reign of Nero.
• The “Monarchian Prologues,” that dates back to 250-350 A.D., claims that Paul also wrote to these seven churches (possibly Romans which was a “circular letter,” it went out to many addressees) following John’s Book, thus, placing the book even before some of the other Pauline epistles.
•A quote, arguably attributed to Papius (130 AD), states that John the Apostle was martyred before the destruction of Jerusalem in A.D. 70.
Roman law of exile:
John is clearly writing to the seven churches and consequently to people being persecuted by Rome. Rome was a bloodthirsty, pagan empire that oppressed its people, especially Christians, who were considered criminals and slaves and used for sadistic entertainment.
Peter also wrote to the Christians in Asia Minor around the same time for an early date or a few years before John (1Pet. 1:1-6; 4:12; 5:9). He notes that they were in extreme persecution, suffering, and in dire anguish. This is similar to John’s language and situation (Re 2:9; 3:9) and similar situations recorded by Paul in Acts 13:50; 14:5,19; 17:5-8,13; 18:12. Thus, the severity of the persecution is consistent with an early date.
Keep in mind that a Preterist view would require that the date for Revelation be prior to 70 A.D.