Thanksgiving sliders are a relatively modern twist on the traditional Thanksgiving meal. While Thanksgiving as a holiday dates back to the early 17th century, when the Pilgrims and Native Americans shared a feast, sliders are a more contemporary culinary innovation. The term "slider" originally referred to small, greasy burgers that could be "slid" down quickly, popularized by White Castle in the early 20th century. However, the concept of mini sandwiches has evolved over the decades.