Centuries: 4th century - 5th century - 6th century
Decades: 420s 430s 440s 450s 460s - 470s - 480s 490s 500s 510s 520s
Years: 469 470 471 472 473 - 474 - 475 476 477 478 479
... such as the ongoing difficulties over spamming, began on Usenet.
Usenet was invented in 1979 as one application of the UUCP protocol which allowed Unix ...
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