Hugh Ross, founder of Reasons to Believe.
Hugh Ross is the founder and charismatic leader of a Christian ministry named Reasons to Believe (RTB) that promotes old-Earth creationism. Although RTB has been active for twenty-five years, it holds the least popular creationist viewpoint among Christian fundamentalists and the least known among Christians of all persuasions. This is most likely because RTB accommodates three major conclusions from mainstream science.
Specifically, RTB creationism stands apart from its creationist competitors (Answers in Genesis, Discovery Institute, and Institute for Creation Research) in adopting the 13.5-billion-year-old universe and the 4.5-billion-year-old Earth and rejecting the biblical worldwide flood. Reasons to Believe maintains that the Noachian Deluge was a regional flood that drowned all humans (except eight), since they all lived in a small area of the planet. Also, while endorsing the Adam and Eve narrative, Reasons to Believe dates the event to about 50,000 years ago. These RTB postulates are anathema to the dominant young-Earth proponents, because they contradict the literal truth of the Bible. Consequently, the other creationist groups consider RTB creationism to be unbiblical.