The treatise Of the Imitation of Christ appears to have been originally written in Latin early in the fifteenth century. Its exact date and its authorship are still a matter of debate. Manuscripts of the Latin version survive in considerable numbers all over Western Europe, and they, with the vast list of translations and of printed editions, testify to its almost unparalleled popularity. The most probable author, however, especially when the internal evidence is considered, is Thomas Haemmerlein, known also as Thomas a Kempis, from his native town of Kempen, near the Rhine, about forty miles north of Cologne. Haemmerlein, who was born in 1379 or 1380, was a member of the order of the Brothers of Common Life, and spent the last seventy years of his life at Mount St. Agnes, a monastery of Augustinian canons in the diocese of Utrecht. Here he died on July 26, 1471, after an uneventful life spent in copying manuscripts, reading, and composing, and in the peaceful routine of monastic piety. With the exception of the Bible, no Christian writing has had so wide a vogue or so sustained a popularity as this. And yet, in one sense, it is hardly an original work at all. Its structure it owes largely to the writings of the medieval mystics, and its ideas and phrases are a mosaic from the Bible and the Fathers of the early Church. But these elements are interwoven with such delicate skill and a religious feeling at once so ardent and so sound, that it promises to remain, what it has been for five hundred years, the supreme call and guide to spiritual aspiration. - Taken from The Imitation Of Christ by Thomas a Kempis