Before McDonald's and Burger King were selling fast food burgers, there was White Castle and its famous sliders. The iconic restaurant opened way back in 1921, and fast food history was made. The burgers haven't changed too much in the 100 years since, but a few alterations have been made in the name of getting food out even quicker. Of course, the chain got a major boost when it was referenced in the title of the first Harold and Kumar film, but they were originally supposed to go somewhere else. Here are some things you probably didn't know about White Castle's famous sliders.
