Innovations in Communication By odyvel 550 BCE First postal system in Persia 90 BCE First organized postal system in Rome by August Caesar 1844 Telegram by Samuel Morse 1876 Telephone by Alexander Graham Bell Period: 1940 to 1949 First computers 1976 First personal computers 1978 First email system 1989 World Wide Web First web browser by Samuel Lee 1997 Six Degrees First social media 1999 My Space 2006 Facebook Mark Zuckerberg launches Facebook in the public