German Wikipedians discovered a road sign citing Wikipedia. The road sign is located at Hamburg, the second-largest city in Germany. It denotes the “Erika-Mann-Bogen”, a street named in 2006 after Erika Mann (1905–1969) (article in English), the eldest daughter of Nobel Prize laureate Thomas Mann.
Members of the German Wikipedia community assume that the Hamburg municipality, by explicitly citing Wikipedia, wanted to express its esteem for the Wikimedia project, which is in Germany comparably high. Others raised the question if the usage of the text complies the GNU Free Documentation License (GFDL). One participant of the discussion joked that the GFDL had perhaps been printed on the backside of the sign which can not be seen on the photo.
Frank Schulenburg, Head of Public Outreach