Catholic missionary Father A. Erdland, from the Sacred Heart Jesu Society based in Hiltrup, Germany, lived on Jaluit from around <answer>1904</answer> to 1914. He was very interested in the islands and conducted considerable research on the Marshallese culture and language. He published a 376-page monograph on the islands in 1914. Father H. Linckens, another missionary from the Sacred Heart of Jesu Society visited the Marshall Islands in <answer>1904</answer> and 1911 for several weeks. He published a small work in 1912 about the Catholic mission activities and the people of the Marshall Islands.
In what year did Father Linckens first travel to the Marshalls?
1904