On 24th February 1582, Pope Gregory XIII issued the papal bull Inter gravissimas which introduces changes to the Julian Calendar. This came to be known as the Gregorian calendar, now followed in most countries.
The world's first 1GB hard disk, IBM 3380, was developed at IBM in 1980. It was the size of a fridge, weighed 550lbs and could actually store 2.52 billion characters. the starting cost was $81,000. [more...]