When we tell others that the book of Revelation deals with events which had happened in AD70, we are usually met with opposition by people who insist they are of the future.
Here’s a helpful way of studying the relevant passages of scripture to get a sense of the timeline.
First understand when John the Baptist came, he already announced it was the last days when he said “the axe is already at the root of the tree”.
Secondly when you read the warnings of Jesus and the comparisons to his previous “generations” like Sodom and Nineveh, you would note that the warnings had referred to his generation.
Also note that Jesus gave multiple warnings to flee Jerusalem. Such warnings can be seen when he entered Jerusalem.
The main passage of such prediction of events is found in Matthew 24, Jesus giving his prediction of events that will happen. This is tied to Revelation. You will see the Angels gathering the elect. That happened in Revelations 7. You see Jerusalem being set on fire. That is the mountain in Revelation 8.
The refrain of fleeing a fleeting city, which does not last forever, is also found in Hebrews 12-13.
The destruction of the temple and the burning of Jerusalem were also spoken in Hebrew 10:26 as “the judgment and fiery indignation”.
These events were also mentioned in Joel 2 in the passages quoted by Peter in Acts 2 when he said the Spirit will be poured out on all flesh in the “last days”.
The events mentioned in Joel 2 spoke of the events which Paul described as the “coming wrath” which were directed to the Jews who opposed the Gospel being preached to the Gentiles. Paul said it was already reaching its limit then.
Hence these are the passages to read.
Genesis the story of Joseph’s dream about the sun, moon and stars.
The complete works of Josephus for its historical details of what happened in AD70.
The book of Revelation was never meant to be read in isolation. Have a great day.