First of all, the literacy rate was less than 3% in Israel.
Tacitus (A.D. 115) - Roman historian
"13. Prodigies had occurred, but their expiation by the offering of victims or solemn vows is held to be unlawful by a nation which is the slave of superstition and the enemy of true beliefs. In the sky appeared a vision of armies in conflict, of glittering armour. A sudden lightning flash from the clouds lit up the Temple. The doors of the holy place abruptly opened, a superhuman voice was heard to declare that the gods were leaving it, and in the same instant came the rushing tumult of their departure. Few people placed a sinister interpretation upon this. The majority were convinced that the ancient scriptures of their priests alluded to the present as the very time when the Orient would triumph and from Judaea would go forth men destined to rule the world." (Histories, Book 5, v. 13).
Tacitus was a Roman senator, historian, and was considered one of the greatest Roman historians of his time and described this event. He despised Christianity and was known in his own days to be careful, skeptical, and factual in his works. One of his duties was to supervise foreign religious cults in Rome.
His works are used to validate the crucifixion of Christ to historians.
Eusebius Book 3 an excerpt from chapter 5.
But the people of the church in Jerusalem had been commanded by a revelation, vouchsafed to approved men there before the war, to leave the city and to dwell in a certain town of Perea called Pella. And when those that believed in Christ had come thither from Jerusalem, then, as if the royal city of the Jews and the whole land of Judea were entirely destitute of holy men, the judgment of God at length overtook those who had committed such outrages against Christ and his apostles, and totally destroyed that generation of impious men. But the number of calamities which every where fell upon the nation at that time; the extreme misfortunes to which the inhabitants of Judea were especially subjected, the thousands of men, as well as women and children, that perished by the sword, by famine, and by other forms of death innumerable, all these things, as well as the many great sieges which were carried on against the cities of Judea, and the excessive sufferings endured by those that fled to Jerusalem itself, as to a city of perfect safety, and finally the general course of the whole war, as well as its particular occurrences in detail,
and how at last the abomination of desolation, proclaimed by the prophets, stood in the very temple of God, so celebrated of old, the temple which was now awaiting its total and final destruction by fire, all these things any one that wishes may find accurately described in the history written by Josephus.
Chapter 7
The Predictions of Christ
It is fitting to add to these accounts the true prediction of our Saviour in which he foretold these very events. His words are as follows: “Woe unto them that are with child, and to them that give suck in those days! But pray ye that your flight be not in the winter, neither on the Sabbath day; For there shall be
great tribulation, such as was not since the beginning of the world to this time, no, nor ever shall be.” The historian, reckoning the whole number of the slain, says that eleven hundred thousand persons perished by famine and sword, and that the rest of the rioters and robbers, being betrayed by each other after the taking of the city, were slain. But the tallest of the youths and those that were distinguished for beauty were preserved for the triumph. Of the rest of the multitude, those that were over seventeen years of age were sent as prisoners to labor in the works of Egypt, while still more were scattered through the provinces to meet their death in the theaters by the sword and by beasts. Those under seventeen years of age were carried away to be sold as slaves, and of these alone the number reached ninety thousand.
These things took place in this manner in the second year of the reign of Vespasian, in accordance with the prophecies of our Lord and Saviour Jesus Christ, who by divine power saw them beforehand as if they were already present, and wept and mourned according to the statement of the holy evangelists, who give the very words which be uttered, when, as if addressing Jerusalem herself, he said: “If thou hadst known, even thou, in this day, the things which belong unto thy peace! But now they are hid from thine eyes. For the days shall come upon thee, that thine enemies shall cast a rampart about thee, and compass thee round, and keep thee in on every side, and shall lay thee and thy children even with the ground.” And then, as if speaking concerning the people, he says, “For there shall be great distress in the land, and wrath upon this people. And they shall fall by the edge of the sword, and shall be led away captive into all nations. And Jerusalem shall be trodden down of the Gentiles, until the times of the Gentiles be fulfilled.” And again: “When ye shall see Jerusalem compassed with armies, then know that the desolation thereof is nigh.”
If any one compares the words of our Saviour with the other accounts of the historian concerning the whole war, how can one fail to wonder, and to admit that the foreknowledge and the prophecy of our Saviour were truly divine and marvellously strange. Concerning those calamities, then, that befell the whole Jewish nation after the Saviour’s passion and after the words which the multitude of the Jews uttered, when they begged the release of the robber and murderer, but besought that the Prince of Life should be taken from their midst, it is not necessary to add anything to the account of the historian.