(Hope nobody objects the deletion of my very old and long done edits here) Hello! On the page about the last glaciation you wrote that the Vistula was a German river till 1945. Don't you know that Poland existed there since the 10th century? During the 2nd World War the Polish territory was occupied by Hitler (and in the 19th century it was occupied by Russia), but this does not mean that the river was "German till 1945"!!! English people commonly used the name Weichsel probably because in the past they had much more contact with Germans than with Poles.Sylwia Ufnalska (talk) 16:29, 23 April 2009 (UTC)
I didn't want to offend you - I just was astonished with your words "German till 1945", which are very misleading. Cologne is the English version and Vistulian is also an English adjective related to the river, while Weichselian is its German equivalent. However, Kim D. Petersen explained me that Wikipedia uses the name that is most common, and notes less common versions - this convinces me. Sylwia Ufnalska (talk) 11:13, 18 May 2009 (UTC)