From the moment the first serve crosses the net at the esteemed Wimbledon Cup, the city of London becomes awash in more than 40,000 pints of a summer libation called a Pimm’s No. 1 Cup. Across the pond, the mint-infused cocktail is also flowing in the Creole city of New Orleans, Louisiana. But just what is the story that connects these seeming-random summer traditions? And why are those in the Crescent City just as fond of the refresher as the Brits?