the Arc de Triomphe in Paris. Cambridge; London: Harvard University Press. Initially a small bodyguard unit under the auspices of the SA, the Schutzstaffel (SS; Protection Squadron) grew to become one of the largest and most powerful groups in Nazi Germany. From membership in the Hitler Youth was made compulsory for all children over the age of ten. The value of this plunder is estimated at 4 billion Reichsmarks. The nsdap daily newspaper, the Völkischer Beobachter Ethnic Observer was edited by Rosenberg, who also wrote The Myth of the Twentieth Century, a book of racial theories espousing Nordic superiority. Emigrants to Palestine were allowed to transfer property there under the terms of the Haavara Agreement, but those moving to other countries had to leave virtually all their property behind, and it was seized by the government. Over half were those considered mentally deficient, which included not only people who scored poorly on intelligence tests, but those who deviated from expected standards of behaviour regarding thrift, sexual behaviour, and cleanliness. Up to 200 people were killed from 30 June to in an event that became known as the Night of the Long Knives. On 19 August, the merger of the presidency with the chancellorship was approved by 90 percent of the electorate in a plebiscite. "Health Care Systems In Transition: Germany" (PDF). Legacies of Dachau: The Uses and Abuses of a Concentration Camp. Iron Kingdom: The Rise and Downfall of Prussia. Plotting Hitler's Death: The German Resistance to Hitler. The party used propaganda to develop a cult of personality around Hitler. Young women of the Bund Deutscher Mädel (League of German Girls) practising gymnastics in 1941 Women were expected to be strong, healthy, and vital.