Harvard professor lectures in SXUOfer Bar-Yosef, a professor of archaeology at Harvard University, delivers a lecture at Shanxi University titled "The Natufian Culture in the Levant ca.15,000-11,700 cal BP", on Oct 25. Professor Ofer Bar-Yosef is the author of over 400 essays and 20 monographs. [Photo/sxu.edu.cn]