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