TL;DR:
From 1200 to 1600 AD, Christianity's global missionary expansion was largely carried out by Roman Catholic monastic and religious orders such as the Franciscans, Dominicans, and Jesuits. During this period, religious orders became major forces in cross-cultural evangelism. Francis of Assisi and leaders of the Jesuit movement helped expand Christianity's worldwide missionary outreach. The orders' organizational flexibility helped them work across a wide geographic area.
The popular image of Christian monasticism often brings to mind hermits, cloisters, and ascetics such as Simeon Stylites. Monastic communities originated in northern Egypt in the fourth century, and in the first few hundred years, solitude and total separation from "the world" defined them. As scholars would remind us, the words monasticism and monk are rooted in the Greek word monos, which can be translated as "alone."
However, that emphasis on "aloneness" began fading by the thirteenth century as monastic and other religious orders turned outward. The movement that had sought to rediscover Christianity by withdrawing from the world and trying to attain holiness by total separation developed into an outward-looking evangelistic movement. During these four centuries—which included the beginnings of European overseas exploration and colonization—religious orders became important centers of missionary training and activity. One author asserts that one of the most positive things about the religious orders "was the missionary organization through which Christendom worked up to Wycliffe, Huss, and Luther."1 A list of prominent Western Church, or Roman Catholic, missionaries from this period demonstrates the importance of monastic and other religious orders in world evangelism. Almost without exception, the names on any such list would have been members of such orders. Few "secular" clergy were involved in cross-cultural evangelism. Stephen Neill calls the founding of the Jesuit order in this period "the most important event in the missionary history of the Roman Catholic church."2
Today, numerous Roman Catholic religious orders continue to engage in missionary work. Among the most well-known are (in alphabetical order) the Augustinians (Order of St. Augustine), the Benedictines (Order of St. Benedict), the Carthusians (Carthusian Order), the Dominicans (Order of Preachers), the Franciscans (Order of Friars Minor), the Jesuits (Society of Jesus), the Missionaries of Charity, and the Salesians (The Society of St. Francis de Sales).
Missionary outreach by religious orders received a major impetus with the formation of the Franciscans early in the thirteenth century. Francis of Assisi infused his followers with missionary spirit. [More on Francis]
According to an early account, when Francis's group of followers reached seventy—the number Jesus sent out in Luke 10—he paired them and sent them out two by two. His commission to each pair was: "Go, proclaim peace to men; preach repentance. You shall increase to a great multitude and shall go on increasing to the end of the world."3
Francis accompanied the Fifth Crusade, not as a combatant but as a preacher. While in Egypt, he met Sultan al-Kamil and spoke with him about the Christian faith.
Historian Williston Walker wrote that, from Francis of Assisi on, missionary outreach "was primarily the endeavor of the monastic orders. . . . To the work of these orders, the Christianity of Southern, Central, and large parts of North America is due. . . . They covered the Philippines."4 Roman Catholic religious orders also carried the gospel message to major countries of Asia, such as Japan, China, and India. They were to be found as well in Africa. Of the major continents of the world, only Australia was untouched by missionaries who were members of monastic or religious orders.
A brief window of opportunity for gospel outreach opened in the Mongol Empire. Missionaries of the Church of the East had carried Christianity into Central Asia centuries earlier, and some tribes later incorporated into the Mongol Empire included Christians. The Mongol rulers generally permitted several religions to coexist within their domains.
Members of the Mongol royal family also had Christian connections. Sorghaghtani Beki, a daughter-in-law of Genghis Khan, was a Christian of the Church of the East. She was the mother of four influential sons: Möngke, Kublai, Hulagu, and Ariq Böke. During the thirteenth century, Franciscan and Dominican envoys and missionaries also traveled to Mongol territories, hoping to establish diplomatic and religious relationships.
According to Marco Polo's account, his father, Niccolò, and his uncle, Maffeo, visited Kublai Khan's court. Kublai, who later established the Yuan dynasty and ruled China from his capital at present-day Beijing, received them courteously and showed interest in the Western world. He asked the brothers to return to Europe as his emissaries and request that the pope send one hundred learned Christians to explain their faith and Western knowledge.
When the Polos reached Acre, they learned that Pope Clement IV had died and that no successor had been elected. The prolonged papal election took place in Viterbo, where local officials attempted to hasten a decision by restricting the cardinals' provisions and removing the roof of their meeting place. After Gregory X was elected, he appointed two Dominican friars to accompany the Polos eastward. The friars soon turned back, however, and the large group of Christian teachers Kublai had requested was never sent.
The history of Christianity among the Mongols is a history of "what ifs." We don't know what would have happened if some things had gone differently. However, there does seem to have been a window of opportunity for Christianity in the Mongol Empire. Sadly, Western Christians did not respond adequately while that opportunity remained open.
Today, the Roman Catholic orders are proud of their missionary past. During a visit I made to the little town of Assisi in central Italy, a Franciscan monk there reminded me that it was his religious order that had evangelized much of the Southwest of my country, the United States.
The effectiveness of these religious orders in cross-cultural missionary outreach was partly due to their organizational flexibility. Each order had its own leadership structure and missionary methods, although all operated within the authority of the Roman Catholic Church. To be sure, such independence at times produced a spirit of competition between the various orders. Even so, one must acknowledge that such competition was not always negative.
So, to sum up, what was the Western Church (or Roman Catholic) missionary strategy from 1200 to 1600 AD? It depended primarily on personnel from the monastic and other religious orders. Latourette sums it up by simply saying that in this period, Roman Catholic missionaries were "monks, and such orders as the Franciscans, Dominicans, and Jesuits had world missions as a major objective."5
— Howard Culbertson, hculbert@snu.edu
From 1200 to 1600, Roman Catholic missions conducted by monastic orders and other religious groups played a valuable role in spreading Christianity around the globe. Here are seven things to know about what happened in world evangelism in those 400 years:
Evangelizing the Barbarians (400-800 AD)
Evangelizing the Vikings (800-1200 AD)