In the early 19th century, when the first attempts to reform Judaism under the influence of Enlightenment ("Haskalah") were made, they had little impact in the Kingdom of Hungary. Rabbi Aaron Chorin of Arad was an early proponent of religious modification; from the publication of his 1803 book "Emeq ha-Shave" and onwards, he dismissed Practical Kabbalah and the Book of Radiance, authored guidelines for modernizing Judaism according to Talmudic principles and sought to remove what he regarded as superstitious or primitive elements, like spitting in the prayer of Aleinu. In 1818, Chorin was one of the few rabbis who backed the Hamburg Temple. He drew the ire of Hungarian Orthodoxy headed by Rabbi Moses Sofer of Pressburg, and, as well, had but meager following in his country. The rural character and social seclusion of the Jews in the kingdom offered little incentive for his endeavor.