Hello again. I'm just wondering about this paragraph from the EB home page's unit descriptions for the Galatikoi Kleruchoi.

"Historically, Galatai were imported in such numbers as to have changed the ethnic makeup of some parts of the country. They often intermarried with the Hellenes and to this day the area around the Fayuum depression in Aigyptos is populated by fair skinned people with light eye colors. The Galatians were fanatically loyal to the Ptolemaioi, being used as a counterweight to the dangerous native troops, which they slaughtered wholesale during two rebellions. After the Roman conquest, these men joined the legions raised in Aigyptos, and spread themselves all over the near east. Theirs is a truly fascinating story that is not often told."

I'd like to know the sources for this, especially about the Fayuum depression. I'm doing a presentation about Galatians and the Fayuum detail would be a neat addition. The only problem is that I need some sources, which I couldn't find on my own, so any help is appreciated.