The earliest church fathers were premillennial.

https://sites.google.com/site/aquina...66446390193429

The wrong view (amillennial)
https://www.catholic.com/qa/does-the...-fulfilled-now

Revelation 20.1-6 (premillennial)
http://www3.telus.net/trbrooks/Revelation_20.htm

Rev. 20.7-15 (premillennial)
http://www3.telus.net/trbrooks/Revelation_20b.htm