You May Not Have Heard of Worcester, England
… but you’ve probably heard of Worcestershire Sauce:
The story goes that Worcestershire sauce was created by accident: a customer came into Lea & Perrins’s apothecary, requested the condiment be prepared and then apparently never returned for it. A few years later, as the remains of the old mixture were about to be tossed from the storeroom, a daring clerk tasted it and — eureka!