1980 Milestone Bulletin Board System (BBS) emerges as one of the earliest known forms of social media, and remains popular and under development until the late 1990s.[8] (21 h 41 m, 31 dez 1979 ano – 2 h 1 m, 11 mar 1980 ano)
Adicionado na linha do tempo:
Data:
21 h 41 m, 31 dez 1979 ano
2 h 1 m, 11 mar 1980 ano
~ 2 months and 12 days