Did Thomas Chalmers invent the gap theory?
It is a common claim that Thomas Chalmers invented the gap theory as a compromise to the evolution idea of millions of years. There are many reasons this is a false claim, because the gap theory is not a recent idea, but a much older.
I have made a chart called who did believe? of who have believed this interpretation, there are many others, but these are just some of them. A thourogh study can be found in the article A long held view
The view can be traced back to the time of Jesus, and even longer back.