I remember about
Juan and Ahmal! I did a paper on identical twins separated at birth for a school assignment.
Juan grew up in Mexico or Spain, and Ahmal was raised in Egypt.
I remember a couple of other twinsets I read about in my research:
Laura and
Bridget: they were British.
Jack and
Oscar: this is strange. They weren't adopted out, but their parents divorced in Germany right around the start of WWII.
Jack lived in Aregentina and was raised Jewish.
Oscar stayed in Germany and was a member of the Nazi Youth.
Gladys and
Goldie: I remember that they took an immediate dislike to each other when they were reunited. I think one had an affair with the other's husband even.