In 1349 the members of your guilds unsuccessfully rebelled in opposition to the patricians in the Handwerkeraufstand ('Craftsmen's Rebellion'), supported by merchants and many by councillors, leading to a ban on any self-organisation in the artisans in the town, abolishing the guilds that were customary somewhere else in Europe; the https://sluiterklik.nl/voordelen-van-graffiti-workshops-ontwikkel-vaardigheden-creativiteit-en-gemeenschapszin/