The beard tax is the best known of a series of measures enacted by Tsar Peter I to transform and regulate the appearance of his subjects. As early as 1698 the tsar ordered many of his prominent courtiers to shave their beards, and in 1699 he began to mandate the wearing of European fashions at court functions. In subsequent years a series of regulations ordered various groups to adopt German (i.e., European) dress.
The Reader’s Notebook: Beard Tax

https://www.smithsonianmag.com/