Fanning out from the town Centre are a series of horseshoe-shaped canals, a place referred to as Grachtengordel. Singel is the first of those canals and was at first the moat that surrounded the main town Centre. This was made achievable as a consequence of improvements in the herring fishery, https://renovatiedienstenamsterda54329.lotrlegendswiki.com/694288/the_basic_principles_of_zaanstad