In 1843 – Sir William Rowan Hamilton finally hit on the idea of Quaternions, and needing a bit more space than his hand to jot it down, he carved it into the stone of Brougham Bridge in Dublin. Why do you care about quaternions? Because calculations involving three-dimensional rotations are essential for 3D computer graphics and computer vision. Video games people.
In 1923 – Distributor M. J. Winkler, contracted to distribute the “Alice Comedies” marking the founding of the Disney Brothers Cartoon Studio which eventually changed its name to the Walt Disney Company, at Roy’s suggestion. So don’t expect anything after this date to ever go out of copyright.
In 1959 – Control Data Corp. released its model 1604 computer, the first from William Norris’s group that left Sperry Rand Corp.