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

Descrição:

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

Adicionado na linha do tempo:

Half-Life and Portal Universe Timeline

ByThe Fancy Fedora

25 dez 2018

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8415

Data:

1 jan 1973 ano

Agora

~ 52 years ago

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