Portal:Timeline/Exo Zombies

Unknown

 * Jonathon Irons is born.

Unknown

 * Gideon is born.

Unknown

 * Irons founds Atlas Corporation.

January 3

 * Atlas acquires Manticore, a bioweapon.

January 8

 * Manticore is unleashed in New Baghdad.
 * Jonathon Irons dies.

Unknown
An Atlas facility is attacked by zombies.