Shaman Fight occur once each 500 years. This page list important events that is known during each SF
Before the first Shaman Fight
In anime Egypt team claim that the first shaman came from Egypt . At unknown year, Grey Saucer crash into Patch Village and was treated by the shamans. He then taught Patch about the Oracle Bell. Rutherfor question if Shaman Fight were started by aliens to observe human
Shaman Fight 1500 BC
According to Hao the first Shaman King was born in the Mū but it is unknown if he meant to born as literal or figuratively coronated as the Shaman King. But if it was literal then the God with fin might be the winner of that time.
Shaman Fight 1000 BC
Winnter: Possibly Zeus (middle figure in G8)
Shaman Fight 500 BC
Shaman Fight year 0
Winnter: Possibly Jesus Christ
Shaman Fight 500 AC
Shaman Fight 1000 AC
Shaman Fight 1500 AC
Faust ancestor, John Faust was in this era of SF and made contact with the devil Mephisto. Hao reborn as Patch Tribe member, to steal Spirit of Fire, and eventually lose to Asakura Yohken. At unknown point he met YVS who participate in this tournament and later win it  The Patch Tribe that oversee this SF ended up convert into YVS's Knight Templar before Hao become the next Shaman King.