sliced bread bread was once ‘the greatest forward step in the baking industry since bread was wrapped’ as it was advertised and this tagline lead to the creation of the phrase ‘greatest thing since sliced bread’. The first loaf slicing machine was invented by Otto Frederick Rohwedder of Davenport, Iowa and in 1928 the machine was used commercially for the first time by the Chillicothe Baking Company of Chillicothe, Missouri. The phrase became popular in the 1950s with ‘the best thing since sliced bread’ being the British variation.