http://news.bbc.co.uk/2/hi/science/nature/8550924.stm
http://news.bbc.co.uk/2/hi/americas/8551528.stm
http://news.bbc.co.uk/2/hi/africa/8550614.stm
"They have a common ancestor who geneticists say lived about 3,000 years ago somewhere in north Arabia, which is the time of Moses and Aaron when the Jewish priesthood started."
The Lemba have a sacred prayer language which is a mixture of Hebrew and Arabic, pointing to their roots in Israel and Yemen.
Despite their ties to Judaism, many of the Lemba in Zimbabwe are Christians, while some are Muslims.
http://www.guardian.co.uk/books/2010/feb/27/as-byatt-alice-in-wonderland