Hey brother, what sources do you have for this? Is one Flavius Josephus? Are there others? I would like to look into it.
Here is a very brief summary of what the Bible says about Christ's return.
Jerusalem would be destroyed
(Matt. 23:38)
The temple would be destroyed
(Matt. 24:2)
Christ would be seen in the sky
(Matt. 26:64)
His angels would be seen in the clouds
(2 Thess. 1:7,8)
There would be a great light
(Matt. 24:27)
A supernatural sign would appear in the sky
(Matt. 24:30)
The sun would darken and the moon turn red
(Matt. 24:30)
There would be earthquakes, famines, disease, wars and false prophets
(Matt. 24:6,7)
All this would happen in the first generation of believers
(Matt. 24:34)
Here are some historical accounts from that time.
Josephus describes what happened to Jerusalem in 68-70 A.D., in his book, "Wars of the Jews". The smoke that rose from Jerusalem darkened the sky and the moon looked like blood, because of the flames. The sea turned red because of the blood of the more than a million Jews who were slaughtered by the Roman army. Tens of thousands of dead bodies covered the streets. There was horrendous famine, including mothers eating their own children, numerous false prophets, etc..
Josephus also described how armies of angels appeared in the clouds with great fire, that there were supernatural signs, that a bright light shone from heaven, that the presence of the Lord left the temple and moved to the Mount of Olives, etc..
The above is a second-hand summary, because I don't have the book.
There are also other writers of the period...
"A certain figure appeared of tremendous size,
which many saw, just as the books of the Jews have disclosed,
and before the setting of the sun there were suddenly seen
in the clouds chariots and armed battle arrays,
by which the cities of all Iudaea and its territories were invaded."
(Quote from chapter 44 from the Latin version of the Pseudo-Hegesippus)
...and Eusebius...
'A demonic phantom appeared of incredible size, and what will be related would have seemed a fairy-tale had it not been told by those who saw it, and been attended by suffering worthy of the portent. For before sunset there appeared in the air over the whole country chariots and armed troops coursing through the clouds and surrounding the cities.'
(Ecclesiastical History, Book 3, Chapter 8, Sections 1-6)
...Josephus...
"...chariots and troops of soldiers in their armor were seen running about among the clouds, and surrounding of cities."
(Wars of the Jews, Book 6, Chapter 5, Sections 2-3)
...Tacitus...
"There had been seen hosts joining battle in the skies,
fiery gleams of arms..."
"...the temple illuminated by a sudden radiance from the clouds."
(Gaius Tacitus, The Histories, Book 5.13)
...Sepher Josippon (from the 16th C.)...
"Now it happened after this that there was seen over the Holy of Holies from above for the entire night the outline of a man's face, the like of whose beauty had never been seen in all the land, and his appearance was very awesome."
"Moreover, in those days were seen chariots of fire and horsemen, a great force flying across the sky near to the ground coming against Jerusalem and all the land of Judah, all of them horses of fire and riders of fire."
(Sepher Jossipon, Burning of the temple, Chapter 87)