Cameras (Friday Dec 31, 399 to Present)
Virtual reality (Monday Jan 1, 1838 to Present)
Computer (Sunday Jan 1, 1888 to Present)
Internet (Sunday Jan 1, 1950 to Present)
Laser (Friday Jan 1, 1960 to Present)
Microprocessor (Monday Nov 15, 1971 to Present)
3D printing (Wednesday Jan 1, 1986 to Present)
Bitcoin (Monday Aug 18, 2008 to Present)
