Rabbi Alexander Hool

Please send a big thank you to Rabbi Hool for his book regarding the missing 168 years. It is an incredible book. I have been looking for a decent answer for years.

Rabbi Alexander Hool grew up under the tutelage of his father, Rabbi Maurice Hool of Kingsbury, London, UK. He learned in Gateshead Yeshivah for many years under the direction of the Rosh Yeshiva, Rav Avrohom Gurwitz, and then moved to Israel where he has been studying (in Ponevezh Yeshivah and Kollel) for over twenty years.

An eminent scholar, he has developed a particular expertise in history, dating, mathematics, and other unique and intriguing subjects. He is the author of the acclaimed work Toras Yom VoLaylah (on the complex Halachic definitions of day, twilight and night and their ramifications) and has published a fundamental study on ancient astronomy and its implications regarding the Halachic Dateline, as well as an analysis of the Murex Trunculus as a possible source of the ancient blue dye ‘Techelet’. His most recent publication is a comprehensive investigation of the classification and calibration of measures and distances used in the Middle East before the Common Era (entitled Shiur HaShiurim).

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