Ever heard of the "gap theory" claiming an indeterminate amount of time between Genesis one, and Genesis Three in an attempt to explain the earth being "without form and void"? This was likely developed by John Nelson Darby or E.W. Bullinger, and taught by C.I Scofield and Clarence Larkin. I once embraced all that until I read and looked into "God created a mature world". That made more sense. There are many things we do not know, but if " And the evening and the morning were the first day" (Genesis 1:5) etc., I can't see wiggle room for the gap theory.