When were contacts invented?

Question

Contacts for your eyes, sorry.

Answer 1

1508 Leonardo da Vinci illustrates the concept of contact lenses
1823 British astronomer Sir John Herschel conceptualizes practical lens design
1887 First contact lens manufactured from glass, and fit to cover the entire eye
1939 Contact lenses first made from plastic
1948 Plastic contact lenses designed to cover only the eye's cornea
1971 Introduction of soft contact lenses
1978 Introduction of GP contact lenses
1981 FDA approval of new soft contact lenses for extended (overnight) wear
1986 Overnight wear of GP contact lenses becomes available
1987 Introduction of disposable soft contact lenses
1987 GP contacts available in next-generation fluorosilicone acrylate materials

Answer 2

What do you mean by contacts? I need more info.