Skulls, once seen as sinister symbols, are now used on everything from children's shirts to underwear. Sara Dickerman of Slate takes a look at how the trend developed:
- In the 16th century, artists like Albrecht Dürer were still using skulls to remind people of their mortality.
- French pirate Emanuel Wynn was the first to use the skull-and-crossbones logo on his ship's flag.
- As skulls came to symbolize bravado, fighters—from US special operations to the Nazi SS—used them on uniforms.