A timeline of all major events in the Halo universe from the time of the Forerunners through the rule of the Created.
The Spartan II program, led by Dr. Catherine Halsey, was a plan by the Office of Naval Intelligence to use children with superior genetic traits to create a group of super-soldiers in order to put an end to the ongoing Insurrection in the outer colonies.
Spartan-III Alpha company was the first of three Spartan-III companies to be recruited, trained, and put into service.
Spartan-III Beta company was the second of three Spartan-III companies to be recruited, trained, and put into service.
Spartan-III Gamma Company was the last of three Spartan-III companies to be recruited, trained, and put into service.
In an effort to boost morale, the Office of Naval Intelligence made public the existence of the Spartan-II program and the accomplishments of the Spartan-IIs in May, 2547.
The Spartan-IV program was the third successful Spartan training program and the first since the end of the Human-Covenant War.
The Spartan-IV program was the third successful Spartan training program and the first since the end of the Human-Covenant War.
