The Mistaken Prophesied Destruction of Jerusalem
What happened
During the brutal Roman siege of Jerusalem in modern-day Israel, numerous local false prophets continually assured the starving defenders that divine, miraculous intervention would save the Holy Temple at the absolute eleventh hour. Instead of salvation, these apocalyptic prophecies lulled the defenders into a false sense of security, resulting in the total burning and destruction of the Second Temple by Titus's legions on the exact same calendar day that the First Temple had been destroyed by the Babylonians centuries earlier. This tragic date alignment was viewed with horror by survivors.
Literary impact
The catastrophic destruction of the temple and the haunting date coincidence gave birth to a massive wave of apocalyptic poetry, Jewish lamentations, and early Christian theological literature. It fundamentally shaped the elegiac tone of rabbinic literature and inspired long traditions of poetic mourning over exile and holy loss.
Source: Wikipedia