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.

In 1950 – CBS’s mechanical color system was the first to be licensed for broadcast by the FCC. Color TV would not become widespread until the late 1960s.

In 1957 – The Jodrell Bank observatory, with the world’s largest radio telescope, designed by Sir Bernard Lovell, began operation. It’s first job was to track the just-launched Sputnik satellite.

In 1958 – NASA launched the lunar probe Pioneer 1 the first of the Pioneer program. It didn’t get very far, falling back to Earth and burning up in the atmosphere.

In 1964 – The opening ceremonies of the summer Olympics in Tokyo became the first Olympic broadcast relayed live by geostationary communication satellite. Too bad all the US networks gave up on live broadcasts of the Olympics.

In 1967 – The Outer Space Treaty came into force, banning nuclear weapons or any other weapons of mass destruction being placed in Earth orbit or on any other celestial body. It also prevents any state from claiming a sovereignty over any celestial resource like the Moon.

In 1995 – The Media Laboratory at the Massachusetts Institute of Technology wrapped up “A Day in the Life of Cyberspace” an attempt to chronicle what people did online that day.