The Dominican Order came into being in the Middle Ages at a time when religion began to be contemplated in a new way. Men of God were no longer expected to stay behind the walls of a cloister. Instead, they travelled among the people, taking as their examples the apostles of the primitive Church. Out of this ideal emerged two orders of mendicant friars: one, the Friars Minor, was led by Francis of Assisi; the other, the Friars Preachers, by Dominic of Guzman. Like his contemporary, Francis, Dominic saw the need for a new type of organization, and the quick growth of the Dominicans and Franciscans during their first century of existence confirms that the orders of mendicant friars met a need.