Otto Frederick Rohwedder, American engineer, invented sliced bread (died 1960)

Otto Frederick Rohwedder was an American inventor and engineer who created the first automatic bread-slicing machine for commercial use. It was first used by the Chillicothe Missouri Baking Company.

Sliced bread is a loaf of bread, sliced with a machine and packaged for convenience, as opposed to the consumer cutting it with a knife. It was first sold in 1928, advertised as "the greatest forward step in the baking industry since bread was wrapped". By 1933, around 80% of bread sold in the US was pre-sliced, leading to the popular idiom "greatest thing since sliced bread".