How Far Back Does Rabbinic Tradition Go?

Did the Jews of ancient Israel, say 2,500 years ago, know about and practice a Judaism that looked similar to the Judaism of today with, for example, dietary laws, tefillin, circumcision, and mikveh? Prof. Yonatan Adler of Ariel University, an erudite researcher and experienced field archaeologist, seeks to answer this in his new book, using archaeological finds and ancient texts.