Uerdingen is a district of the city of Krefeld, Germany, with a population of 18,507, though Uerdingen received its charter as a city as early as 1255, well before Krefeld. Uerdingen was merged with Krefeld in 1929, after which the term “Krefeld-Uerdingen” was used, until, eventually, the use of the term “Uerdingen” fell away altogether. Until the reapportionment in the German state of North Rhine-Westphalia in 1975, Uerdingen, as a part of the city of Krefeld, had a fairly unique special status within Germany. The former Rhine city had special rights and privileges. One sign of this can still be seen today in Krefeld’s city coat of arms (“Wappen”), which still has the Uerdinger arms in its right half.