The Onbekendegracht originally gave the Voormalige Stadstimmertuin street access to the Amstel.

In 1948, residents of the Onbekendegracht asked the municipality of Amsterdam to change the name of the canal because they found it too confusing.

[2] The impressionist Claude Monet painted a canvas in 1871 entitled "Le Moulin de l'Onbekende Gracht, Amsterdam" on which the "Rooseboom" mill is depicted.

In the course of time the mill was also called "Binnen Tuchthuismolen", "Het Land van Beloften" or "de Eendracht".

In Monet's time, woods such as Paubrasilia were ground by the mill for the production of dyes.