A fact from Windmills in Leeuwarden appeared on Wikipedia's Main Page in the Did you know column on 5 June 2010 (check views). The text of the entry was as follows:
This article is within the scope of WikiProject Mills, a collaborative effort to improve the coverage of mills on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.MillsWikipedia:WikiProject MillsTemplate:WikiProject MillsMills articles
This article is within the scope of WikiProject Frisia, a project which is currently considered to be inactive.FrisiaWikipedia:WikiProject FrisiaTemplate:WikiProject FrisiaFrisia articles