From the Sixth Dynasty tomb artwork. Are you truly unaware of the history of circumcision?
Sixth Dynasty (2345–2181 BC) tomb artwork in Egypt is thought to be the oldest documentary evidence of circumcision, the most ancient depiction being a bas-relief from the necropolis at Saqqara (ca. 2400 BC) with the inscription reading "Hold him and do not allow him to faint". In the oldest written account, by an Egyptian named Uha, in the 23rd century BC, he describes a mass circumcision and boasts of his ability to stoically endure the pain: "When I was circumcised, together with one hundred and twenty men...there was none thereof who hit out, there was none thereof who was hit, and there was none thereof who scratched and there was none thereof who was scratched."[2]
Circumcision in ancient Egypt was thought to be a mark of passage from childhood to adulthood. The alteration of the body and ritual of circumcision was supposed to give access to ancient mysteries reserved solely for the initiated. The content of those mysteries are unclear but are likely to be myths, prayers, and incantations central to Egyptian religion. The Egyptian Book of the Dead, for example, tells of the sun god Ra performing a self-circumcision, whose blood created two minor guardian deities. Circumcisions were performed by priests in a public ceremony, using a stone blade. It is thought to have been more popular among the upper echelons of the society, although it was not universal and those lower down the social order are known to have had the procedure done.[3] The Egyptian hieroglyph for "penis" depicts either a circumcised or an erect organ.
Circumcision was also adopted by some Semitic peoples living in or around Egypt. Herodotus, writing in the fifth century BC, reported that circumcision is only practiced by the Egyptians, Colchians, Ethiopians, Phoenicians, the 'Syrians of Palestine', and "the Syrians who dwell about the rivers Thermodon and Parthenius, as well as their neighbours the Macronians and Macrones". He also reports, however, that "the Phoenicians, when they come to have commerce with the Greeks, cease to follow the Egyptians in this custom, and allow their children to remain uncircumcised."[4]
http://en.wikipedia.org/wiki/History_of_male_circumcision