notreligus - Okay, here are some differing thoughts for sure on those three topics. I won't include the scripture references that I have for each point, but they are available if requested.
The millennium of Rev. 20 lasted (past tense) a literal 1,000 years. It was a millennium of a physical temple worship system authorized by God as a precursor to the True Temple to come after His death, resurrection, and ascension.
It ended with the First Resurrection in AD 33, which saw Christ and the Matthew 27:52-53 saints raised together as the Firstfruits from among the dead, and with Christ established as the foundation stone of the new,True Temple made of living stones.
It began with the foundation stone of Solomon's temple being laid in 967 BC.
It had a middle period when God "revived His work" among the Jewish nation in the "midst of the years" (in the middle of the years 967 BC through AD 33), with the post-exilic return of the Jews to Jerusalem under the 4 decrees passed by the Persian rulers (in 537, 519, 467 and 454 BC). Zerubbabel laid the foundation stone of the 2nd temple in the midst of these millennium years, using Ezekiel's temple blueprints.
Satan was bound for these literal 1,000 years by the ministry of the prophets, so that the nations at large could no longer claim that they were deceived and ignorant concerning the knowledge of the God of Israel. Solomon's world-wide reputation for wisdom helped with that. The "short time" and the "little season" that Satan was loosed on the earth lasted from AD 33 until AD 66. Then, until AD 70, the entire demonic world was imprisoned in Jerusalem, at which time it was obliterated so that the world would not be subjected to their presence in the age that followed AD 70.
The "rapture" of nothing but resurrected people occurred at Pentecost in AD 70 with Christ's physical, bodily return on the Mt. of Olives. This was Christ's second coming, when every resurrected eye saw him, but with only some of those living at that time seeing His coming, as He promised. There was a Great White Throne Judgment at that time to close out God's Old Covenant dealings with mankind, just as there will be a third resurrection and another Great White Throne Judgment to close out His New Covenant dealings with mankind in the future.
It's God's play called "Redemption", having an Old Covenant Act I and a New Covenant Act II with an Intermission between. And the play lasts for 7,000 years.
Hey, I forewarned that this was different from your usual fare.