Scissors
Scissors have ancient roots. The oldest scissors have been dated to between 3,000 and 4,000 years ago in Mesopotamia. These ancient scissors were a single piece of metal that was bent. It was bent so that the two cutting blades were near each other. The user would press them together. The innovation of making the scissors out of two pieces of metal with a screw or rivet fulcrum has been lost to history. We do know that in 1761 Robert Hinchliffe developed a steel-casting method for scissor blades. When they were attached to each other and handles added, they looked nearly identical to the scissors we know today.
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