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1 Jan 1973 Jahr - The earliest known use of a bulletin board system by Aperture Science. (Portal ARG)

Beschreibung:

- 1973
- The earliest known use of a bulletin board system by Aperture Science.

Zugefügt zum Band der Zeit:

Half-Life and Portal Universe Timeline

ByThe Fancy Fedora
25 Dez 2018

Datum:

1 Jan 1973 Jahr
Jetzt
~ 51 years ago
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