A revolving typecase for wooden type in China

JOHANNES GUTENBERG INVENTS THE PRINTING PRESS WITH METAL MOVABLE TYPE

SAMUEL MORSE DEVELOPS THE MORSE CODE AND LATER THE FIRST LONG DISTANCE ELECTRIC TELEGRAPH LINE

Alexander Graham Bell & Thomas A. Watson exhibit an electric telephone

Thomas Edison patents the phonograph.

Radio station KDKA based in Pittsburgh began the first broadcast.

 Full-scale commercial television is first broadcast

Chester Carlson presents the first photocopier suitable for office use

The first hosts of ARPANET, Internet's ancestor, are connected

The personal computer (PC) market is born.

Tim Berners-Lee & Robert Cailliau build the prototype system which became the World Wide Web

Neil Papworth sends the first SMS (or text message)

What would become the largest social networking site in the world, Facebook is launched

YouTube, the video sharing site, is founded by Chad Hurley, Steve Chen, & Jawed Karim

Twitter (microblogging) was created in by Jack Dorsey, Evan Williams, Biz Stone & Noah Glass