This work consists of three independent volumes or parts: • The first of these, entitled ''Yemot 'Olam,
is a history from the Creation down to his own time. The author always endeavors to give, by means of calculation, the dates of Biblical personages. He bases his work on the Yuḥasin
of Abraham Zacuto, on the Shalshelet HaKabbalah
of Gedaliah ibn Yaḥya, and on the Ẓemaḥ Dawid'' of
David Gans. It seems that this first part was written when the author was still young, for the last event which he registered was one occurring in 1697. • The second part, ''Seder HaTanna'im WehaAmora'im,'' contains lists of the
Tannaim and
Amoraim in alphabetical order with their dates. • The third part is a kind of catalogue containing first the names of all the authors, then those of their works, both arranged in alphabetical order. Heilprin based this part on the
Sifte Yeshenim of
Shabbethai Bass, but added a great number of other titles. He states in the preface the many advantages of a knowledge of the chronological order of the
Talmudists, which indeed in certain cases is absolutely necessary. The whole work is followed by notes on the Talmud, also arranged in alphabetical order. It was published for the first time by Heilprin's grandson,
Judah Löb Heilprin, at
Karlsruhe in 1769. There exist several other editions, the latest being the revised one of
Naphtali Maskileison, son of
Abraham Maskileison Warsaw, 1882. Of Heilprin's numerous other works mentioned in the
Seder HaDorot, the only one which has been published is
Erke HaKinnuyim, a dictionary of synonyms and homonyms occurring in the
Bible,
Talmud, and other works, chiefly Kabalistic (Dyhernfurth, 1806). == Example (Israel's sojourn in Egypt)==