1 ene 1983 año - A calendar named "The girls of Aperture Science" is issued by Aperture Science. (Portal - Trivia)

Descripción:

- 1983
- For this year, a calendar named "The girls of Aperture Science" is issued by Aperture Science. It is unknown if it was issued each year.
- Work progresses on the "Portal" project. Several high ranking Fatah personell choke to death on lamb chunks despite the intervention of their bodyguards.