The document outlines the history of communication technologies from 100,000 years ago to present day, starting with the development of speech 30,000 years ago, the use of symbols 5,000 years ago, and the invention of writing. Major milestones include the electrical telegraph in 1838, the transatlantic cable in 1855, the telephone in 1876, radio in 1896, television in 1927, and the internet in 1983, leading to modern technologies like mobile phones, satellite communication, email, social media, and voice over internet protocol.

1. History of Communication
100,000Yearsago-Speech
30,000Yearsago-symbols
5,000Yearsago-writing
prehistoric-smokesignals
6thcenturybce-mail
5thcenturybce-pigeons
1838-electricaltelegraph
1855-firsttransatlanticcable
1876-telephone
1896-radio
1927-tv
1969-computernetworking
1973-cellular
1979-inmarsat(ship-to-shoresat)
1982-smtpemail
1983-internet
1998-mobilesatellitehandheld
2003-voip(skype)|Linkedinlaunched
1995-IRc/mIRC
1990-instantmessaging(ICQ)
1971-firstemail
2004-facebook
2002-friendsteropens
2003-myspace/linkedin/itunes