I was reading an article today on circumcision a news website I frequent. It displayed a picture from the tomb of Ankhmahor, a high ranking Egyptian official that was, apparently, responsible for mass circumcisions in Egypt. This is the earliest archeological evidence we have for Bris Milah.
My mind immediately went to the story about how Yosef demanded that the Mitzrim circumcise themselves in order to receive grain from his storehouse during the famine. There are other significant similarities between the two personalities which lead me to wonder:
Is it possible to identify the historic Ankhmahor with the biblical Yosef?
More details: Ankhmahor is similar to Imhotep his importance to Egypt, he was called "first" to Pharoah (Yosef was called Av), called "physician" even though he wasn't. The first scene in his tomb is agricultural (referencing the feast/famine?), followed by artisans presenting goods (amassing egyptian wealth), followed by circumcision. Seems to fit the structure of Chumash. Like Imhotep, he was known as a "Ra priest." Imhotep's tomb is unknown, but rumored to be in Saqqara like Ankhmahor's tomb. Ankhmahor's tomb has extremely strong words for people disturbing it, but I can't find anything about the condition of his mummy, or whether it even exists (possibly taken out of egypt?).
But it was really the circumcision that drove the comparison home for me and made everything click.