Step 1 : Introduction to the question "Who invented the first scissor?"
...Many credit Leonardo Da Vinci with inventing scissors but history tells us scissors were around before his lifetime. No one knows for sure who invented the first scissors. The historical record lists spring scissors, those consisting of two blades connected by a single strip of metal that holds them together at the end, in archaeological finds dating to the 14th century BCE. The Romans modified the design to the cross-blade scissors that are common today. Robert Hinchliffe of Sheffield, England, was the first to use steel in mass-producing scissors in 1761. Source: Thoughtco.com