White Castle slider called 'most influential'Updated: Friday, January 17 2014, 03:22 PM PST COLUMBUS, Ohio (AP) - Time magazine says White Castle's small, square "sliders" are "the most influential burger of all time."The magazine notes the "now-iconic square patty" that debuted in 1921 in Wichita, Kan. was the first burger to spawn a fast-food empire. White Castle has been based in Columbus since 1934.The Time story puts the White Castle burger at the top of the list of the 17 most influential burgers of all time, beating out burgers from McDonald's and In-N-Out.White Castle vice president Jamie Richardson tells The Columbus Dispatch that "slider" has been a term of endearment for the delectable little burgers since the 1950s.© 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.White Castle slider called 'most influential'