The piston syringe was first used in Roman times in the 1st century AD. In the 9th century, an Iraqi/Egyptian surgeon created an early hypodermic syringe using a needle and glass tube to remove cataracts. Syringes continued to be used and improved over time, with notable developments including Pascal inventing a syringe using his law in 1650, the first recorded subcutaneous injections in 1884, and the first all-glass mass-sterilizable syringe produced in 1946. Disposable plastic syringes were later invented in the 1950s and patented.