Christian Lous Lange was a Norwegian historian, teacher, and political scientist. He was one of the world’s foremost exponents of the theory and practice of internationalism.
He was born in Stavanger; his father was a military engineer and he was the grandson of the historian Christian C. A. Lange. He graduated from secondary school in 1887 and proceeded to travel and study history, English, and French at the University of Oslo, from which he received the cand philol. degree in 1893. He taught at secondary schools for many years and eventually returned to the University of Oslo to receive a doctorate.