Assume that you were privileged and invited to attend a party arranged during a pre-historic time. It was hosted by none other than Adam (the mythological man as per religious beliefs), the first man, who was created by the god. It was an all-male party.
You accepted the invitation and attended the party, which was attended by a large number of people.
However, in the party you are not sure who was the host (that is, Adam) and your task is to identify him, though you have observed that all of the attendees are semi-clad/semi-naked (of course, as expected, as the time was pre-historic).
You thought for a moment and got a means to identify who Adam was.
Question is - what was the means for you to identify who Adam was?
Note: This is a fictional question and not intended to hurt anyone's feelings/sentiments in any manner whatsoever.