Pretty much what Aelia said.
Strong was also known as the "Merciful God". Essentially he was one of the original 200 Chojin Gods who created Man and the Chojin. When the Chojin started making factions (Idol/Devil) and fighting among one another, the Gods decided to exterminate all Chojin using the Capillaria rays. The Merciful God (AKA The Man), disagreed and volunteered to leave his position as god and become a chojin in order to protect a handful of chojin (The Perfect Origin) and lead them. The other gods agreed and the rest as they say is history.
Basically this, but the ancient Choujin of the past had no factions, they just wanted to take everything for themselves. Goldman and Silverman directly founded the Devil and Justice Choujin themselves when they left the Origin.
Edited by Jenny, 18 May 2016 - 03:09 AM.