He was born in Kristiania to government official (kanselliråd) Jens Kølle and his wife Catharine Hermine Juell.
He emphasized "purely Norwegian" words in books, and argued for more phonemic orthography in the written language.
[4] His principles were attacked by J. J. Vangensten in Norway's first newspaper Norske Intelligenz-Sedler, and by Jens Kragh Høst in the Danish Kiøbenhavnske Efterretninger om lærde Sager, both in 1796.
[1] The letter å eventually became introduced in Norwegian in 1917,[5] and written feminine grammatical gender also became a reality.
Kølle released the topographical pamphlet Kårt Beskrivelse over Snarøen, en liden Gård ved Christiania in 1792.
[7] Christian Kølle sold the farm in 1803, and moved with his family to Kopervik, a place which he considered safer in the event of war.