The Atla Historical Monographs Collection: Series 1 is an archive of religious and theological literature spanning from the late 13th century to the 1893 World Parliament of Religions. The collection encompasses a wide range of religious topics and comprises numerous volumes in Aramaic, Arabic, Greek, and Hebrew. Atla Historical Monographs Collection: Series 2 is an archive of religious and theological literature from 1894 through 1922. It showcases the changing landscape of religion in America at the turn of the century, including the growing interest in non-Western religions.