Well, Brexit did happen in the end, contrary to my son’s prediction of a Thirty Years’ War, and we toasted the news with vodka. I spent the following week recovering and reading up on the history of that magic potion, learning much about it I had not known. No Russian I’ve ever met, for instance, would tell you that the word itself, “vodka,” is scarcely more than a hundred years old. Instead, for many centuries, and well into the nineteenth, the term “bread wine,” or simply “wine,” was generally used to describe forty-proof alcohol made from grain. Strangely enough, when...