Chinese men seeking alms by threatening to kill themselves by self-mutilation}: (left to right) two men hitting their heads against each other; a man kneeling to hit his head against a rock; a man with burning herbs on his head; a standing man hitting his head with a rock. Engraving after J. Nieuhof.

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: Chinese men seeking alms by threatening to kill themselves by self-mutilation}: (left to right) two men hitting their heads against each other; a man kneeling to hit his head against a rock; a man with burning herbs on his head; a standing man hitting his head with a rock. Engraving after J. Nieuhof. Wellcome Collection. Source: Wellcome Collection.