Gap creationism
From ReformedWiki.org, the wiki for Reformed Christianity
Gap creationism (or the Gap theory) is a form of old-earth creationism that proposes a vast, indeterminate time gap between Genesis 1:1 and 1:2. It argues that God originally created the heavens and earth, but a pre-Adamic cataclysm—often linked to Satan's fall—destroyed it, resulting in the "formless and void" state of Genesis 1:2.
