THE SWAY OF THE CROSS 279 teen thousand writers including among them men of great distinction. In the safe retreats of their monasteries they unostentatiously carried on very useful work but for which many of the most valuable treasures of the ancient world might have been irretrievably lost to us. According to one writer, " the monasteries were the schools, the libraries, the publishing houses, the literary centres, the hospitals, and the workshops of medieval times." They were also the inns and asylums to the weary travellers and the forsaken or care- worn people. Not the least important work done by the monastic orders was the spreading of the message of Jesus Christ. Gregory the Great had himself been a monk before he became Pope. Then he had been struck by the appearance of a few Angle lads brought to the slave market in Rome. When he became Pope one of the first things he did was to send a mission to England under Augustine, which resulted in the conver- sion of the English to the Christian faith. Another great example of the missionary work done by the monks is that of St. Boniface, in 718. He was an Englishman and he undertook at great personal risk to convert some of the remotest German tribes. He lived- to be the Archbishop of Mainz in 732. Still another type of monasticism was represented by the Franciscans and Dominicans. The former order was found- ed by the Italian St Francis of Assisi, and the latter by the Spanish St. Dominic. The Franciscans laboured to serve ' the poorest, and lowliest, and lost'; while the Dominicans concentrated on fighting heresies. Both produced distin- guished scholars like Thomas Aquinas (a Dominican) and Roger Bacon (a Franciscan), and both received official recognition under Innocent III (1198—1216), the Pope who excommunicated and deposed King John of England. The