… our roots …
early 13th century a settlement was mentioned with this name at a lake there, named the CulmSEE ( = CulmLAKE) … and it was told that a wanderer who came from that settlement’s lake named himself Culmsee because those days family names where not common … and that’s why – very shortened – why “we” are named Culmsee or Kulmsee or in a variation Kolmsee / Colmsee, too, reasoned by the fact that C… / K… often were used synonymous (Latin) …
location of Culmsee in 1251 got city rights
since 20th century, finally after WWII, C/K got back its name Chełmża located at the lake named Jezioro Chełmżyńskie
As a fun and somewhat strange fact, the map I use as a background calls the lake “Culmseer See”, which is somewhat a Pleonasm (a duplication)
these are standard maps named “Topographische Karte” = TK25 (scale 1:25000) with its number for “Culmsee 2877”, this scale is 1cm on map = 25000 cm in reality >> means 4 cm map = 1 km reality.
TK25 is too named “Messtischblatt” = ordnance map or ordnance survey map [but not meter nor km]
official map’s name:
2877 Culmsee Topographische Karte 1:25.000 Messtischblatt des Deutschen Reiches (einfarbig) BKG Bundesamt für Kartographie und Geodäsie
https://www.mapfox.de/D_25H_2877-a-2877-Culmsee-Topographische-Karte-1-25-000-Messtischblatt-des-Deutschen-Reiches–einfarbig–BKG-Bundesamt-f%C3%BCr-Kartographie-und-Geod%C3%A4sie?PHPSESSID=5f150013b2b8316570cc73e54c4c18d3
another site with zoom
https://www.landkartenarchiv.de/tk25c.php?q=2877_Culmsee_1909