White Castle is celebrating its iconic original slider on Thursday, which is deemed National Slider Day by the nationwide chain.

Want a free burger? Today's the day to head to White Castle. You can get a free Original Slider at White Castle on May 15 to celebrate National Slider Day. No purchase is required. The burger ...

White Castle will celebrate National Slider Day on May 15 by offering customers a free Original Sliders. There is no purchase necessary, but customers can use a digital coupon available on White ...

White Castle customers can get one free Original Slider in honor of National Slider Day. Hand-out Photo by White Castle White Castle is celebrating its Original Slider with a one-day giveaway.

White Castle introduced National Slider Day in May 2015 to honor the slider. “The introduction of the Slider in 1921 helped turn White Castle into a household name and launched the fast-food ...

Smalls Sliders has announced the return of its National Slider Day promotion to honor each location’s Smalls Rewards loyalty members. Slidin’ thru Smalls Sliders Cans on May 15, the brand’s loyalty ...

White Castle is offering customers a free original slider on Thursday's National Slider Day. Customers can get a free slider from White Castle on Thursday with a downloaded coupon or with ...

White Castle is offering a complimentary original slider on May 15 to commemorate National Slider Day. The restaurant chain, known for its mini hamburgers, started the giveaway celebration in 2015 ...