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Unlike chocolate chip cookies or tomato soup, the invention of bread can't be pinned down to a single person or people; instead, it evolved to its present state over the course of millennia.
Although the modern version of sliced bread is a fairly new invention , bread itself is an ancient food with origins dating back more than 22,000 years.
In 2004, at an excavation site called Ohalo II, in what is modern-day Israel, scientists found 22,000-year-old barley grains caught in a grinding stone: the first evidence of humans processing wild cereal grains. But these early "bread" creations were probably more like "flat cakes of ground seeds and grains heated on a rock, or in the embers of a fire," than standard sandwich bread, Howard Miller, a food historian and professor at Lipscomb Universityin Nashville, Tennessee, told Live Science.