1 janv. 1956 - Aperture Science manufacture shower curtains to all branches of the US Military. (Portal 2: The Official Guide)

Description:

- 1956
- The Eisenhower administration signs a contract with Aperture Science to manufacture shower curtains to all branches of the US Military, except the Navy.
- Pump Station Alpha (which pumps Repulsion Gel) is in active use by now.

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