“…A review of classic sources reveals that it was probably Gumplowicz who used the concept of ethnocentrism (more specifically, "Ethnocentrismus") for the first time in print. In fact, there are at least eight of his publications (five books and a paper written in German, and one book and a paper written in Polish) that had used the concept before Sumner's 1906 book (Gumplowicz, 1879(Gumplowicz, , 1881(Gumplowicz, , 1883(Gumplowicz, , 1884(Gumplowicz, , 1887(Gumplowicz, , 1892(Gumplowicz, , 1895. Gumplowicz saw ethnocentrism as a similar phenomenon, or more correctly a "delusion", to geocentrism (the belief that the Earth has the central position in the universe) and anthropocentrism (the belief that humans have the central position on the Earth), but focusing on one's own ethnic group (nation, people).…”