History of iPhone
On January 9, 2007, Steve Jobs announced iPhone at the Macworld convention, receiving substantial media attention. Jobs announced that the first iPhone would be released later that year. On June 29, 2007, the first iPhone was released.
Jochen Claussen-Finks
Sliding Calendar invention in 1984. The conceptual idea of the calendar was to create something thin and intelligent smooth to use with one hand. The desired month is adjusted in a small window on the front from a code system on the back. The first company to use the calendar as a giveaway was IBM to promote the introduction of the Personal Computer with Charlie Chaplin as a cover print in Germany. The calendar works without a battery. After the white version, Claussen-Finks developed a relief surface for a black version of the calendar giving the impression of an electronic device. The permanent sliding calendar was invented by Claussen-Finks 24 years before Apple presented its first iPhone in 2008, where sliding on the screen with the finger appeared in an electronic consumer product for the first time.