We do not know the Rh factor frequencies among the ancient Hebrews, but we can look at related tribes as well as certain populations standing out today. While Ashkenazi tend to show similar frequencies as the European nations in which their ancestors lived for hundreds of years, significantly higher Rh- frequencies in some other Jewish and closely related groups raise the questions once again: Did the ancient Hebrews have high percentages of Rh- blood, where did they originate and were there significant differences between the Jewish tribes? You have now!