What was the aspect of American culture in the late 19th century was a major cause of the plexus of social problems that W. E.B Du bois refers to in the study of the negro problems

indigenous people north and south were displaced, died of disease, and were killed by europeans through slavery, rxpe, and war. in 1491, about 145 million people lived in the western hemisphere. by 1691, the population of indigenous americans had declined by 90-95 percent, or by around 130 million people."

performances and sculptures

cultural/diplomatic relations. most medieval japanese   culture has chinese origins. writing, architecture etc.

during the middle ages bibles and most christian literature was written in latin i think that’s the answer you are looking for