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1 jan 1972 ano - Aperture Science constructs at least Chambers 01 and 02 of the Propulsion Gel Testing Facility. (Portal 2 - Trivia)

Descrição:

- 1972
- Aperture Science constructs at least Chambers 01 and 02 of the Propulsion Gel Testing Facility.

Adicionado na linha do tempo:

Half-Life and Portal Universe Timeline

ByThe Fancy Fedora

25 dez 2018

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Data:

1 jan 1972 ano

Agora

~ 53 years ago

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