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.

In 1878 – The Edison Electric Light Company began operation. They would go on to become more general. As in making up a significant part of General Electric.

In 1956 – Fortran, the first modern computer language was shared with the public for the first time. The IBM Mathematical Formula Translating System made John Backus a legend, kicked off modern programming, and is still developed to this day by the Fortran Standards Technical Committee.

In 2003 – China launched the Shenzhou 5, its first manned space mission, becoming the third country in the world to have independent human spaceflight capability. Yang Liwei piloted the capsule showing the flags of the People’s Republic of China and the United Nations.

In 1884 – US inventor George Eastman received a patent on his new paper-strip photographic film. It would reign for over 100 years until digital stole its thunder.

In 1977 – The Atari 2600 went on sale in North America.

In 1985 – The first official reference guide for the C++ programming language was published. It was written by the language’s creator, Bjarne Stroustrup.

In 1884 – Geographers and astronomers adopted Greenwich as the Prime Meridian, making it the International standard for zero degrees longitude. Today the Greenwich observatory shoots a laser northwards at night to indicate the meridian. It is not a dangerous laser.

In 1983 – Bob Barnett, president of Ameritech Mobile communications, called Alexander Graham Bell’s nephew from Chicago’s Soldier Field using a Motorola DynaTAC handset. It marked the launch of the first cellular telephone network in the US.

In 1985 – The first observation of a proton-antiproton collision was made by the Collider Detector at the Fermi National Accelerator Laboratory in Batavia, Illinois.

In 1979 – The Hitchhiker’s Guide to the Galaxy was first published unleashing in book form the world of Vogon Poetry, essential towel behaviour, and the BabelFish.

In 2001 – The Polaroid Corporation filed for federal bankruptcy protection, killed off by 1-hour developing and the rise of digital cameras. Bank One bought most of the company and re-launched a company that went on to stop making cameras and film.

In 2005 – After previously assuring us nobody wanted to watch videos on an iPod, Steve Jobs reversed course and Apple started making videos available on iTunes. ABC/Disney was the only TV network available at the time but you could get episodes of Lost and Desperate Housewives the day after they aired.