July 7, 1928 Sliced bread is sold for the 1st time by the Chillicothe Baking Co of Chillicothe, MO
Sliced bread is a loaf of bread that has been pre-sliced with a machine and packaged for convenience. It was first sold in 1928, advertised as "the greatest forward step in the baking industry since bread was wrapped".[1] This led to the popular phrase, "the greatest thing since sliced bread".
Otto Frederick Rohwedder of Davenport, Iowa, USA invented the first loaf-at-a-time bread-slicing machine. A prototype he built in 1912 was destroyed in a fire[2] and it was not until 1928 that Rohwedder had a fully working machine ready. The first commercial use of the machine was by the Chillicothe Baking Company of Chillicothe, Missouri, which produced their first slices on July 7, 1928.[3] Their product, "Kleen Maid Sliced Bread", proved a success. Battle Creek, Michigan has a competing claim as the first city to sell bread presliced by Rohwedder's machine; however, historians have produced no documentation backing up Battle Creek's claim.[4] The bread was advertised as "the greatest forward step in the baking industry since bread was wrapped."
St. Louis baker Gustav Papendick bought Rohwedder's second bread slicer and set out to improve it by devising a way to keep the slices together at least long enough to allow the loaves to be wrapped.[2] After failures trying rubber bands and metal pins, he settled on placing the slices into a cardboard tray. The tray aligned the slices, allowing mechanized wrapping machines to function.[5]
W.E. Long, who promoted the Holsum Bread brand, used by various independent bakers around the country, pioneered and promoted the packaging of sliced bread beginning in 1928.[6] In 1930 Wonder Bread, first sold in 1925, started marketing sliced bread nationwide.
http://en.wikipedia.org/wiki/Sliced_bread