Every now and then you hear someone set a date for Christ’s return.
Such dates are bound to fail –
Matthew 24:36 "No one knows about that day or hour ... "
And when they do fail -
(Issac Newton) was wary of prophetic date-setting. Newton was worried that the failure of fallible human predictions based on divine prophecy would bring the Bible into disrepute. (Source)
To stop the doomsayers -
He estimated that the world would end no earlier than 2060. In predicting this he said "This I mention not to assert when the time of the end shall be, but to put a stop to the rash conjectures of fanciful men who are frequently predicting the time of the end, and by doing so bring the sacred prophesies into discredit as often as their predictions fail. (Source)
Now my question -
What is the time or events before which Christ couldn't return no matter what? (to put a stop to the rash conjectures of fanciful men and satisfy my curiosity)