A tangential nitpick, but perhaps interesting from a history-of-symbols perspective:
...the skull and crossbones permeated culture as a symbol of danger. By the late 1800s, it was starting to be used as a symbol for poison. Then in the 1940s, the Nazis adopted it for their SS death head divisions.
The chronology here is a bit off: The death's head was not introduced into the German military by the Nazis, but by the Prussians, in the early 1800s. It was then used periodically by both the Prussians and later Imperial Germany. Following the fall of the Kaiser, it was used by the Freikorps (right-wing paramilitaries) during the Weimar Republic. And finally by the SS. The Nazis did introduce some new symbols (especially some runic and pagan stuff that the SS liked), but the totenkopf is a classic symbol of German militarism that they merely continued, as part of their glorification of Imperial Germany and especially the Freikorps.
...the skull and crossbones permeated culture as a symbol of danger. By the late 1800s, it was starting to be used as a symbol for poison. Then in the 1940s, the Nazis adopted it for their SS death head divisions.
The chronology here is a bit off: The death's head was not introduced into the German military by the Nazis, but by the Prussians, in the early 1800s. It was then used periodically by both the Prussians and later Imperial Germany. Following the fall of the Kaiser, it was used by the Freikorps (right-wing paramilitaries) during the Weimar Republic. And finally by the SS. The Nazis did introduce some new symbols (especially some runic and pagan stuff that the SS liked), but the totenkopf is a classic symbol of German militarism that they merely continued, as part of their glorification of Imperial Germany and especially the Freikorps.