What is the relationship between the Paris World Fair of 1900 and some infographics about African-Americans made by W. E.B. Du Bois?

because of all the immigration, america became one big melting pot. the diversity of cultures from all over the world made america somewhat divided as well. people that immigrated stayed with their kind, and their traditions, while native born americans stayed with their kind and their traditions. normally, people born in american scorned the immigrants as well. the new religions also divided america. in summary, it took away from the american culture and identified america as the "melting pot."

its hard for me to see which word is supposed to be in bold. if i knew then i would be able to better.