 Complete the following phrase:  Subsequently, Nolte expanded upon these views in his 1987 book Der europäische Bürgerkrieg, 19171945 The European Civil War, 19171945 in which he claimed that the entire 20th century was an age of genocide, totalitarianism, and tyranny, and that the Holocaust had been merely one chapter in the age of violence, terror and population displacement. Nolte claimed that this age had started with the 