In 1853, Chef George Crum got tired of a customer who kept telling him his fried potatoes weren't crunchy enough. So he sliced them as thin as possible, fried them in hot grease, and doused them in salt.
While working on a cure for headaches, John Pemberton's lab assistant accidentally mixed cola leaves and cola nuts with carbonated water.
Graduate students who were working on a silicon chip accidentally broke it and discovered that little bits of the chip were still sending signals.
Keith Kellogg accidentally left bread dough sitting out one day. He decided to bake it anyway, and the flaky product became corn flakes.
An engineer at Raytheon walked in front of a Magnetron and he noticed that the chocolate bar in his pocket melted. Shortly after, he put together the first microwave.
When Scottish biologist Alexander Fleming noticed that a strange fungus was killing all the bacteria in his lab, Penicillin was born.
In 1942 Dr. Harry Coover wanted a simple glue. Instead he created a substance that stuck to absolutely everything. We now know his substance as cyanoacrylate.
Frank Epperson, 11, left powdered soda and water on the porch with a stir stick in the cup. It froze.
A 3M employee named Arthur Fry used a substance the company had called 'useless' to hold bookmarks in his hymnal. He quickly realized it wasn't actually useless.
A naval engineer named Richard James wanted to find a spring that would support delicate equipment on a ship. A spring he was working with fell and kept moving; that's when James realized this could be a fun toy.
Two thousand years ago in China, a cook accidentally mixed charcoal, sulfur, and saltpeter. When all of these ingredients were compressed in a bamboo tube, the mixture exploded.
Joseph and Noah McVicker stumbled across Play-Doh in 1955 while trying to create a wallpaper cleaner.
Swiss engineer Georges de Mestral realized that burr’s hooks would stick to anything with a loop shape after seeing them stick to his pants.
German physicist Wilhelm Roentgen stumbled across x-rays while attempting to do something else entirely with Cathode ray tubes.