エスノセントリズムという言葉を生んだのは誰
The term "ethnocentrism" was coined by Ludwig Gumplowicz and subsequently employed by social scientist William G. Sumner. Gumplowicz defined ethnocentrism as the reasons by virtue of which each group of people believed it had always occupied the highest point, not only among contemporaneous peoples and nations, but also in relation to all peoples of the historical past. 
Ludwig Gumplowicz