Learn why ?Mordechai Yehuda? is also ?Mortka Leib? is also ?Max?. An introduction to Jewish given names (first names), focusing on practical issues for genealogical research. Our ancestors each had many different given names and nicknames, in various languages and alphabets ? this can make Jewish genealogical research difficult. This presentation will teach you about the history and patterns of Jewish first names, and how to recognize your ancestors' names in genealogical sources. Topics include: Religious and secular names; origins of given names; variants, nicknames and diminutives; double names (unrelated pairs, kinnui, Hebrew/Yiddish translations); patronymics; name equivalents; Ashkenazic naming traditions (naming of children); statistics on the distribution and popularity of given names in various regions and times; spelling issues; Polish and Russian declensions; interpretation of names in documents; and the Anglicization of immigrant Jewish names: adaptations and transformations.