There is a lot that has happened in the past that is overlooked or goes unmentioned or is intentionally hidden or is distorted from imitation and parroting. While the example I'm providing below is not really conspiracy theory or controversial, it, at least, is something that is not discussed much and is somewhat connected to this blog (involving Isis mysteries and a sun god).
Let's take the Roman figure Lucius Cornelius Sulla Felix.
In one of my books, Witchcraft: the Old Religion, there is a brief mention that Sulla was responsible for bringing the Cult of Isis to Rome. This is something that I had not read in the three biographies of Sulla I possess, and not even present in a fiction series about his life. With some research, I found the specific details (I lost the source info, I apologize):
About 80 B.C. Sulla founded an Isiac college in Rome, but their altars within the city were overthrown by the consuls no less than four times in the decade from 58 to 48 B.e., and the worship of Isis at Rome continued to be limited or suppressed by a succession of enactments which were enforced until the reign of Caligula. The Isiac mysteries were a representation of the chief events in the myth of Isis and Osiris - the murder of Osiris, the lamentations of Isis and her wanderings, followed by the triumph of Horus over Seth and the resurrection of the slain god - accompanied by music and an exposition of the inner meaning of the spectacle. These were traditional in ancient Egypt, and in their later development were no doubt affected by the Eleusinian mysteries of Demeter.Sulla was also a major worshiper of Apollo, something he had inherited from his gens as it was common for a patrician family especially to focus their worship on a specific deity.
The Ludi Apollinares (Games of Apollo) were games which were first organized in 212 BC, when C. Sulla was P. Praetor.And from Plutarch:
Sulla had a little golden image of Apollo from Delphi which he always carried in his bosom when he was in battle [Battle of Colline Gate], but that on this occasion he took it out and kissed it affectionately, saying: "O Pythian Apollo, will you, who have brought Cornelius Sulla Felix greatness and glory in so many battles and who have guided him to the gates of his native city, now cast him down here to perish most shamefully in the midst of his fellow citizens?"For more information on the lesser known aspects of Sulla check out:
"The Clemency of Sulla" by Melissa Barden Dowling in Historia: Zeitschrift für Alte Geschichte, Vol. 49, No. 3 (3rd Qtr., 2000), pp. 303-340. Published by: Franz Steiner Verlag