Full Half-life Timeline

By Whythough

  • Red, Blu, and Gray are born

  • Zepheniah Dies

  • Invention of Immortality

  • City 17 is Founded

  • Cave Johnson is Born

  • Caroline is Born

  • Cave Johnson founds Aperture Fixtures

  • Cave Johnson buys Salt mine in Upper Michigan

  • Richard Keller is Born

  • Aperture Fixture Rebrands to Aperture Science

  • Wallace Breen is Born

  • Black Mesa Begins Construction

  • Isaac Kleiner is Born

  • Blu's Machine is Repaired

  • Russel is Born

  • Test Shaft 09 is Closed

  • Arne Magnusson is Born

  • Development of GLaDOS

  • Eli Vance is Born

  • Collette Green is Born

  • Aperture Declares Bankruptcy

  • Hearing regarding Disappearance of Astronauts

  • Gravel War

  • Discovery of the internet

  • Gray Returns

  • Robot War

  • Blu and Red Die

  • Robot War

  • Assemble the Team

  • Aperture Changes Test Demographic

  • Chell is Born

  • Gordon Freeman is Born

  • Gina Cross is Born

  • Judith Mossman is Born

  • Cave Johnson Purchases Moon Rock

  • Adrian Shephard is Born

  • Take-A- Wish Foundation is Born

  • Gordon Freeman makes butane powered tennis ball cannon

  • Barney Calhoun is Born

  • Girls of Aperture Science Calander is sold

  • Bring your Daughter to work day

  • First Activation of GLaDOS

  • Cave Johnson is Dead

  • Borealis is Lost

  • Scout Dies

  • Multiversal testing Begins

  • Red Phone Plan is set in motion

  • Gordon Freeman goes to Austria

  • Aperture Testing becomes more Difficult

  • Alyx Vance is Born

  • Gordon Freeman Receives Doctorate

  • Azian Vance Dies

  • Resonance Cascade

  • GLaDOS Executes Aperture

  • Gordon and Adrian are put in Stasis

  • Collette Green possibly Dies

  • Nilinthe is Defeated

  • Collette and Gina Reverse the Cascade

  • Gina Cross Dies

  • 7 Hour War

  • Combine gain Control

  • Chell Destroys GLaDOS

  • Rattman Possibly Dies

  • Alyx Saves her Father and Creates a Parellel Timeline where she is Hired

  • Combine Attack Black Mesa East

  • Eli Vance is Captured

  • Alyx Saves Gordon from Stasis

  • Grigori helps Gordon out of Ravenholm

  • Attack on Nova Prospekt

  • Gordon and Alyx Disappear

  • Attack on the Citadel

  • Communications Lost

  • Gordon put back in Stasis

  • Gordon and Alyx Appear in Kleiners Lab

  • Gordon is Freed from Stasis by Vortigaunts

  • Super Portal is Created

  • Gordon and Alyx Stabilize the core

  • Gordon Freeman and Alyx save Survivors

  • Chell is Reawoken by Wheatley

  • GLaDOS is Reawoken

  • Wheatley Gains Control

  • Wheatley is Launched into Space