UNESCO on Monday added 78 nominations to its Memory of the World heritage program, including diplomatic records of Korean envoys to Japan and three ancient stone monuments north of Tokyo.

Meanwhile, a panel of the U.N. Educational, Scientific and Cultural Organization recommended postponing a decision on whether to add documents on "comfort women," who were forced to work in wartime Japanese military brothels.

UNESCO did not add the records of late Japanese diplomat Chiune Sugihara, who helped some 6,000 Jewish refugees escape Nazi persecution during World War II. The organization did not disclose the reason for the decision.