When did that happen? .....if it has....
Just to add that the binding of Satan can be understood better by reading what happens when he is loosed, after the thousand years are ended.
When he is loosed, he will go out to deceive the nations
in the four corners of the earth. This implies that all the nations will be deceived together. So, for Satan to be bound means that he is prevented from deceiving all the nations at one time. Individual people and nations yes, but all together, no, not until the end of the thousand years.
Jesus used metaphor to indicate that during his ministry he was binding Satan and robbing his house. Thus the thousand years started in AD 70 with his judgment on the apostate Old Covenant church, which Satan had taken over, and the destruction of its temple.
Jesus' 'parousia', or 'second coming', encompassed this event, which was the visible proof that he was sitting at God's right hand, his kingdom having been established. It also encompasses the time when the dead will rise for judgment, which Revelation 20 tells us will take place after Satan's release.