Jeunesse ouvrière chrétienne
In 1919 he started the "Young Trade Unionists". In 1924, the name of the organization was changed to "Jeunesse Ouvrière Chrétienne", the Young Christian Workers. JOC grew rapidly throughout the world; its members were often known as "Jocists" (the movement was often called "Jocism"). By 1938, there were 500,000 members throughout Europe; in 1967, this had increased to 2,000,000 members in 69 countries.