Mordecai ben Nissan
Mordecai ben Nissan the Elder (Heb. מרדכי בן ניסן הזקן, Mordechai ben Nissan ha-Zaken) was a Karaite Jewish scholar who lived at Krasnoi-Ostrog, Poland, in the 17th and 18th centuries. Education. He studied under Joseph ben Samuel, hazzan of Kalisz, and David ben Shalom ha-Zaken, and at an early age became proficient both in rabbinical and in Karaite literature. Works. Mordecai is chiefly known through his work "Dod Mordechai" (Vienna, 1830), written in answer to four questions addressed in 1698 to David ben Shalom ha-Zaken by Jacobus Trigland, professor of theology at the  University of Leiden. These four questions were: (1) Is the Karaite sect identical with that which existed at the time of the Second Temple under the name "Sadducees," or did it originate with Anan ben David, as the Rabbinites assert? (2) Was Aquila, the proselyte, to whom Menahem Qala'i had addressed letters, identical with the Greek translator or with the author of the Targum? (3) Is the "Moreh Aharon" identical with the "Sefer ha-Mitzvot" of Aaron ben Elijah of Nicomedia; if not, who was its author? (4) Has the Karaite Bible any variants from the Rabbinite Bible, and what  is the prevailing belief among the Karaites with regard to the time of the introduction of vowels and accents? Mordecai divided his work into 12 chapters, each of which bears the name of a Jewish tribe. To the first question he answered that, although the Karaite sect is not identical with that of the Sadducees, it nevertheless existed at the time of the Second Temple. He divided the history of the Karaites into three epochs: the first beginning with the formation of a separate congregation without any external distinction from other congregations, in the time of Simeon ben Shetach; the  second beginning with Anan, who made an open stand against the Talmudists; and the third beginning with the fourteenth century, when the first traces of the decline of Karaism began to be felt. The second question is left unanswered. The name "Menahem," he says, is nowhere to be met with except in the "Mibhar", and there is, therefore, no information concerning his personality. As to the author of the Targum, Mordecai knows him only through the Rabbinite authorities. The third question is answered satisfactorily, and Mordecai gives by the way information of the Karaite works found in Poland. The Karaite  Bible, he says, in answer to the fourth question, does not vary from that of the Rabbinites; and the vowels and accents are believed to have been transmitted to Moses on Mount Sinai. Here Mordecai cites Azariah dei Rossi and displays a vast knowledge of rabbinical literature. In addition, Mordecai wrote: "Sefer Ma'amar Mordechai," a commentary on the "Mibhar" of Aaron ben Joseph; "Derek ha-Yam," dissertation on a passage of the "Mibhar" to Genesis ix. 21; "Kelalim Yafim," an elementary Hebrew grammar; "Yad Adonai," the subject of which is not known; "Lebush Malkhut," on the differences between the Rabbinites  and the Karaites; liturgical poems, some of which have been inserted in the Karaite ritual. Resources. , which cites the following bibliography: