30 Before-and-After Photos That Show How Much the World Has Changed

THEN: The term “augmented reality,” or AR, was coined in 1990 by Boeing researcher Tom Caudell.

In simplest terms, AR technology enhances your perception of the real world with computer-generated sensory input or information. In 1992, Louis Rosenberg built one of the earliest working AR systems, Virtual Fixtures, for the US Air Force.

The system used AR to overlay information on the workspace, improving the military’s ability to control machinery remotely.