He was born in Trondhjem as a son of Georg Fredrik Collin (died 1867) and Marie Fredrikke Dreyer (1833–1901).
When his father died at the age of ten, Christen Collin was raised by his maternal grandfather in Tromsøe.
degree at the Royal Frederick University in 1887, and studied abroad while writing for Verdens Gang before returning home and founding the periodical Nyt Tidsskrift.
[1][2] He started teaching at the Royal Frederick University in 1892, and was promoted to docent in the history of European literature in 1895.
He criticized Naturalism, especially in the 1894 book Kunsten og moralen, and received rebuttals from people like Gunnar Heiberg, Nils Kjær, Arne Garborg and Georg Brandes.