This book describes and explains the fluidity of the definition of Jewishness from c. 200 BCE to c. 200 CE.

In modern times, various Jewish groups have argued whether Jewishness is a function of ethnicity, of nationality, of religion, or of all three. These fundamenta

This is a study of the notion of Jewishness from c. 200 BCE to c. 200 CE. Reasonable and well-informed people disputed whether a given person was Jewish or not;

Jonathan D. Sarna's award-winning American Judaism is now available in an updated and revised edition that summarizes recent scholarship and takes into account

"Judaism is one of the oldest religions in the world, and it has preserved its distinctive identity despite the extraordinarily diverse forms and beliefs it has