Updated for National Pretzel Day 2019

Friday, April 26, 2019, is National Pretzel Day, a day that you can not only spend time appreciating pretzels and their history but also eating the doughy treats—and, depending on where you go, you may be able to score them for free or a reduced price. In honor of National Pretzel Day, several pretzel shops offer a special deal on April 26. Make sure to check your specific location to confirm it is participating in the deal.

But before you dip that pretzel into some spicy mustard, you might find the experience more enjoyable once you understand the history of this knot of dough.