After much thought and innumerable attempts at various designs he [Hitler] hit upon a flag with a red background and in the middle a white disk on which was imprinted a black swastika. The hooked cross--the hakenkreuz--of the swastika, borrowed though it was from more ancient times, was to become a mighty and frightening symbol of the Nazi Party and ultimately of Nazi Germany. Whence Hitler got the idea of using it for both the flag and the insignia of the party he does not say in a lengthy dissertation on the subject in Mein Kampf.
The hakenkreuz is as old, almost, as man on the planet. It has been found in the ruins of Troy and of Egypt and China. I myself have seen it in ancient Hindu and Buddhist relics in India. In more recent times it showed up as an official emblem in such Baltic states as Estonia and Finland, where the men of the German free corps saw it during the fighting of 1918-19. The Ehrhardt Brigade had it painted on their steel helmets when they entered Berlin during the Kapp putsch in 1920. Hitler had undoubtedly seen it in Austria in the emblems of one or the other anti-Semitic parties and perhaps he was struck by it when the Ehrhardt brigade came to Munich. He says that numerous designs suggested to him by party members invariably included a swastika and that a ?dentist from Sternberg? actually delivered a design for a flag that ?was not bad at all and quite close to my own.?