Communication History By InAMomentLikeThis Jan 14, 1800 Morse Code Jan 14, 1960 Teleprinter Used in world war II Jan 14, 1971 ARPANET The first Advanced Research Projects Agency Network (ARPANET) was sent Jan 14, 1972 Unix mail program Jan 14, 1972 APL mailbox By Larry Breed Jan 14, 1981 PROFS by IBM Jan 14, 1982 ALL-IN-1 by digitalequipment corporation Jan 14, 2004 Facebook Jul 15, 2006 Twitter
