Venetian 17th century scientist Michiel Angelo Salamon came up with an idea to distill the essence of the bubonic plague and paint it onto Albanian fezzes which the besieging Turks would acquire. – WTF Fun Facts
Source: https://www.newscientist.com/article/mg22830494-400-17th-century-plot-to-use-plague-hats-as-bioweapons-revealed/
