Male-line connections between Sephardi and Ashkenazi Jews. Sephardi Jews (as well as their converso descendants in Iberia and Latin America) and Ashkenazi Jews are genetically related, especially on their male lines, at multiple timepoints throughout history—from ancient (i.e. common origins in ancient Israel) to early modern (i.e. post-Inquisition Sephardi ancestry in Eastern Europe). The goal of this project is to document as many of these Sephardi-Ashkenazi links as possible, using Y-DNA haplogroups and haplotype signatures of Ashkenazi, Sephardi, Iberian, Hispanic, and Italian males. All male Sephardim and Ashkenazim are welcome to join, as well as their Iberian, Hispanic, and Italian matches, and members of other Mediterranean Jewish groups.