Klaus Luhmer, a professor emeritus at Sophia University and historian of Western pedagogy, died of pneumonia Tuesday at a Tokyo hospital, the university said Wednesday. He was 94.

Born in Germany, he stayed in a suburb of Hiroshima when the city was hit by the U.S. atomic bomb on Aug. 6, 1945, and continued sharing his experiences at that time with students.

He also served as chancellor of Sophia School Corp.