1288 - 1344 (6 Iyar 5104) LEVI BEN GERSHON RALBAG
Rabbi, mathematician, astronomer, philosopher and biblical/talmudic commentator. In his Milchamot Hashem (Wars of the Lord) he elaborated on his own conception of Maimonides' philosophy. He tried to explain miracles through laws of nature. As an astronomer, he influenced Copernicus and is reputed to be the inventor of the "Jacob's Staff", a quadrant used for centuries by navigators. He also wrote a commentary on the Bible and reportedly invented the "camera obscura", which threw images on a screen and was the forerunner of the modern camera.