1,950 years ago: Titus sacks Jerusalem

And I will make your cities waste, and bring your sanctuaries unto desolation, and I will not smell the savour of your sweet odours.
And I will bring the land into desolation: and your enemies which dwell therein shall be astonished at it.
And I will scatter you among the heathen, and will draw out a sword after you: and your land shall be desolate, and your cities waste. Leviticus 26:31-33

And as he went out of the temple, one of his disciples saith unto him, Master, see what manner of stones and what buildings are here!
And Jesus answering said unto him, Seest thou these great buildings? there shall not be left one stone upon another, that shall not be thrown down. Mark 13:1-2

On September 8, 70, the siege of Jerusalem, which had begun almost five months earlier, ended when Roman legions commanded by future Emperor Titus completed their conquest of the city, which included the capture of the Second Temple, aka Herod's Temple. The sacking of Jerusalem fulfilled the prophecies of Moses and the Lord Jesus Christ; the latter prophecy must have seemed most unlikely at the time, but it was fulfilled less than 40 years later.

The Temple has yet to be rebuilt, but it will be (see, e.g., Ezekiel 40-44, II Thessalonians 2:4). The Temple Mount Faithful and the Temple Institute have been preparing for years for the building of the Third Temple. The book Ready to Rebuild by Thomas Ice & Randall Price (1992) and the companion video, hosted by Jimmy DeYoung, are no longer recent, but are still relevant and useful sources of information on this subject. Dr. DeYoung hosted a revised version of his video in 2011: