Nicolaus Copernicus is known that Copernicus knew Polish on a par with German and Latin. Historian Michael Burleigh describes the nationality debate as a "totally insignificant battle" between German and Polish scholars during the interwar period. Polish astronomer Konrad Rudnicki calls the discussion a "fierce scholarly quarrel in ... times of nationalism" and describes Copernicus as an inhabitant of a German-speaking territory that belonged to Poland, himself being of mixed Polish-German extraction. Czesław Miłosz describes the debate as an "absurd" projection of a modern understanding of nationality onto Renaissance people, who identified with their home territories rather than with a nation. Similarly,
Nicolaus Copernicus common in the period, the spellings of both the toponym and the surname vary greatly. Copernicus "was rather indifferent about orthography". During his childhood, about 1480, the name of his father (and thus of the future astronomer) was recorded in Thorn as "Niclas Koppernigk". At Kraków he signed himself, in Latin, "Nicolaus Nicolai de Torunia" (Nicolaus, son of Nicolaus, of Toruń). At Bologna, in 1496, he registered in the "Matricula Nobilissimi Germanorum Collegii, resp. Annales Clarissimae Nacionis Germanorum", of the "Natio Germanica Bononiae", as "Dominus Nicolaus Kopperlingk de Thorn – IX grosseti". At Padua he signed himself "Nicolaus Copernik", later