Complex sentence: The German geology professor and expert mountain climber Gustav Schulze made the second ascent of Urriellu on 1 October 1906 also from the north face, making him the first man to make the climb solo.
Split into simpler sentences: The German geology professor and expert mountain climber Gustav Schulze made the second ascent of Urriellu on October 1,1906 also from the north face. Making him the first man to make the climb solo.