I was reading this article in the Spokesman Review today that stated some
Italian scientists think that based on fingerprints that came off of mss and
other objects Leonardo is said to have touched that his mother might have been of Arabic origin.
According to the article supposedly patterns on fingerprints differ from
ethnic group to ethnic group.However it also cited scientists who were skeptical of the claim by noting that SOME in SOME ethnic groups have
CERTAIN patterns in their fingerprints.
Still since little is known about Leonardo's personal life from birth to the time he left Vinci(most of what he know is really from his Florentine
period)it is tempting to believe just about anything that comes along.