2013 - the year of Nicolaus Copernicus This year will be widely celebrated in the Cuyavian Pomerania and other northern voivodeships of Poland. What is inetersting, in 2013 fall three important anniversaries related to the life and scientific activity of Nicolaus Copernicus - 540th anniversary of his birth, 470th anniversary of his death and the 470th anniversary of the first edition of "De revolutionibus orbium coelestium" - a revolutionary book about the breakthrough helicentric theory, that was unbelievable for most people of his epoque.