The Way of St. James in the Netherlands is said to have started after St. Boniface brought Christendom to Friesland and the worship of his reliquaries near Dokkum gained popularity from 800 onwards. The route did not become popular however until the 15th century, well after the "Santiago Matamoros" legend. There are several Cathedral towns considered official starting routes by the Dutch confraternity of St. James. Haarlem, a centuries-old starting point, has been the starting point of a modern cycling route to Santiago de Compostela since 1983, when an international workgroup of scholars researched the old route and one of them developed a set of maps. Since that time there have been other cycling routes to Santiago de Compostela published from other Dutch cities, most notably Maastricht. The Dutch and northern (Flemish) Belgians call the route the "Jacobsroute". In Wallonia (southern Belgium) it is called "Le Chemin de St. Jacques de Compostelle".