Late date of Revelation? I wonder why everyone assumes that Revelation was written about 90 AD rather than earlier. It seems to me that the book dates itself in a few passages.

Rev. 11:1-2 suggest that the temple was still standing at the time of writing, and the time from Rome's declaration of war on Jerusalem to Jerusalem fell was exactly 42 months.

Chapter 17:10-13 suggest the time of writing during the reign of the "sixth king:"

five have fallen, one is, the other has not yet come ... The beast which was and is not, is himself also an eighth and one of the seven ... ten horns

This may date the book of Revelation within 14 years, whether or not to include the pretended Nero who had supposedly survived an assassination attempt.

Julius (49-44 BC)

Augustus (27 BC - 14 AD)

Tiberius (14 -37 AD)

Gaius (37-41)

Claudius (41-54)

Nero (54-68)

Galba (68-69)

Otho (69)

Vetellius (69)

Vespasian (69-79)

I'm not convinced of a late date of writing of Revelation, but taking clues from the book itself, it's easy to come to a much earlier date, during the reign of Nero, before 70 A.D.