Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Marcus Jastrow (June 5, 1829, Rogo no October 13, 1903) was a renowned Talmudic scholar, most famously known for his authorship of the popular and comprehensive A Dictionary of the Targumim, Talmud Babli, Talmud Yerushalmi and Midrashic Literature. Jastrow was born in Rogasen in the Grand Duchy of Posen. After receiving rabbinical ordination, Ph.D., and Doctorate of Letters (D.Litt), he became the rabbi of the then Orthodox Congregation Rodeph Shalom in Philadelphia, Pennsylvania in 1866, at the age of thirty-seven.