Forget "eye of newt and toe of frog/wool of bat and tongue of dog." People in the 16th century were more akin to DIY scientists than Macbeth’s three witches when it came to concocting home remedies for everything from hair loss and toothache, to kidney stones and fungal infections. Medical manuals targeted to the layperson were hugely popular at the time, according to Stefan Hanss, an early modern historian at the University of Manchester in the UK. "Reader-practitioners" would tinker with the various recipes, tweaking them as needed and making personalized notes in the margins. And they left telltale protein traces behind as they did so.
第四，金融霸权。一战让美国从债务国变成了世界最大债权国，战前欧洲列强欠下的战债，大量流向了华尔街。美元借助战争开始走向国际化。
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