A member of an ethnic group descended from Judah, one of the 12 tribes of Israel, via their mother, or who has converted to the Jewish faith. This group while comprising about 0.2% of the world's population has won about 1/3 of the Nobel Prizes. Three famous Jews are Jesus, Freud and Einstein.
John: Hey, kids aren't getting paralyzed by polio like a lot of kids were until the 50's.
Jane: Yeah, and Dr. Jonas Salk and Dr. Albert Sabin who invented the vaccines were both Jews.