Who invented scissors?

It is most likely that scissors were invented in 1500 BC in ancient Egypt. The earliest known scissors appeared in the Middle East 3,000 or 4,000 years ago. These were of the ‘spring scissor’ type comprising two bronze blades connected at the handles by a thin, curved strip of bronze. This strip served to bring the blades together when squeezed and to pull them apart when released.

Scissors from the Chinese Tang dynasty
Cross-bladed scissors were invented by the Romans around AD 100.
Instead of two blades connected by a screw, the scissors of the ancient Egyptian and Romans were made out of one piece of metal, with two blades connected by a curving handle. To make the scissors work, a user had to press the blades together with his fingers.
The scissors, as we use today, were invented by Leonardo Da Vinci.