Gap creationism
Gap creationism ( also known as ruin-restoration creationism , restoration creationism , or "the Gap Theory" ) is a form of old Earth creationism that posits that the six-"yom" creation period , as described in the Book of Genesis , involved six literal 24-hour days ( light being "day" and dark "night" as God specified ) , but that there was a gap of time between two distinct creations in the first and the second verses of Genesis , which the theory states explains many scientific observations , including the age of the Earth . 
<triplet> Gap creationism <subj> old Earth creationism <obj> subclass of