The dating of Revelation is critical to a proper understanding of eschatology. The most popular view of the day is that Revelation was written late in the first century, under the emperor Domitian, who was supposedly persecuting the church. This is increasingly being challenged as non-historical. Nonetheless, take a look at this chart 1Pet-Rev which is a comparison between 1 Peter, that is acknowledged to have been written prior to AD 70, and the book of Revelation.
For more on this, see my book Who Is This Babylon.
It is clear from the comparative chart that Peter is drawing from Revelation. This demands that Revelation was written prior to 1 Peter.
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