Fundamentalists often make it a test of Christian orthodoxy to believe that the world was created in six 24-hour days and that no other interpretations of Genesis 1 are possible. They claim that until recently this view of Genesis was the only acceptable one—indeed, the only one there was.
The writings of the Fathers, who were much closer than we are in time and culture to the original audience of Genesis, show that this was not the case. There was wide variation of opinion on how long creation took. Some said only a few days; others argued for a much longer, indefinite period. Those who took the latter view appealed to the fact "that with the Lord one day is as a thousand years, and a thousand years as one day" (2 Pet. 3:8; cf. Ps. 90:4), that light was created on the first day, but the sun was not created till the fourth day (Gen. 1:3, 16), and that Adam was told he would die the same "day" as he ate of the tree, yet he lived to be 930 years old (Gen. 2:17, 5:5).