Although we hear all about how our four-tier buttercream or fondant wedding cakes are supposed to symbolize the foundation of your relationship and good fortune as you cut into the bottom tier together, that wasn't always the case. This wedding tradition's predecessor involved the breaking of bread over the bride's head. A groom would eat barley bread, then hold up the remainder of the loaf above his bride's head and shower her with the crumbs. (Just in case she didn't already know her place by that point!) Guests would scramble for the crumbs, because they were supposed to be good luck. Sheesh.