Time Line The following is a list of important Internet events In chronological order 1969. Four-node arpanet established 1970. ARPA hosts implement NCP 1973. Development of TCP/iP suite begins 1977. An internet tested using TcP/Ip 978.UNIX distributed to academic sites CSIE NTUT TANANCSIE, NTUT, TAIWAN 5 Time Line The following is a list of important Internet events in chronological order: 1969. Four-node ARPANET established. 1970.ARPA hosts implement NCP. 1973. Development of TCP/IP suite begins. 1977.An internet tested using TCP/IP. 1978. UNIX distributed to academic sites