was later adopted by the Nazis from that book's German version Der Kulturumsturz: Die Drohung des Untermenschen (1925). Rosenberg was the leading Nazi who attributed the concept of the East-European "under man" to Stoddard. An advocate of the U.S. immigration laws that favored Northern Europeans, Stoddard wrote primarily on the alleged dangers posed by "colored" peoples to white civilization, and wrote The Rising Tide of Color Against White World-Supremacy in 1920. In establishing a restrictive entry system for Germany in 1925, Hitler wrote of his admiration for America's immigration laws: "The American Union categorically refuses the immigration of physically unhealthy elements, and simply excludes the immigration of certain races." German praise for America's institutional racism, previously found in Hitler's Mein Kampf, was continuous throughout the early 1930s. Nazi lawyers were advocates of the use of American models. Race-based U.S. citizenship and anti-miscegenation laws directly inspired the Nazis' two principal Nuremberg racial laws—the Citizenship Law and the Blood Law. To preserve the Aryan or Nordic race, the Nazis introduced the Nuremberg Laws in 1935, which forbade sexual relations and marriages between Germans and Jews, and later between Germans and Romani and Slavs. The Nazis used the Mendelian inheritance theory to argue that social traits were innate, claiming that there was a racial nature associated with certain general traits such as inventiveness or criminal behavior. According to the 2012 annual report of Germany's interior intelligence service, the Federal Office for the Protection of the Constitution, at the time there were 26,000 right-wing extremists living in Germany, including 6,000 neo-Nazis. Australia and New Zealand Fifty-one people died from two consecutive terrorist attacks at the Al Noor Mosque and the Linwood Islamic Centre by an Australian white supremacist carried out on March 15, 2019. The terrorist attacks have been described by Prime Minister Jacinda Ardern as "One of New Zealand's darkest days". On August 27, 2020, the shooter was sentenced to life without parole. Ideologies and movements Supporters of Nordicism consider the "Nordic peoples" to be a superior race. By the early 19th century, white supremacy was attached to emerging theories of racial hierarchy. The German philosopher Arthur Schopenhauer attributed cultural primacy to the white race: The eugenicist Madison Grant argued in his 1916 book, The Passing of the Great Race, that the Nordic race had been responsible for most of humanity's great achievements, and that admixture was "race suicide". In this book, Europeans