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 first to react to news of Copernicus's theory. Melanchthon wrote: Nevertheless, in 1551, eight years after Copernicus's death, astronomer Erasmus Reinhold published, under the sponsorship of Copernicus's former military adversary, the Protestant Duke Albert, the "Prussian Tables", a set of astronomical tables based on Copernicus's work. Astronomers and astrologers quickly adopted it in place of its predecessors. Some time before 1514 Copernicus made available to friends his "Commentariolus" ("Little Commentary"), a manuscript describing his ideas about the heliocentric hypothesis. It contained seven basic assumptions (detailed below). Thereafter he continued gathering data for a more detailed work. About 1532 Copernicus had