57,448 B.C.E.
From Halopedia, the Halo Wiki
(Based on the Military Calendar)
100,300 B.C.E. 2500 2520s 2530s 2540s 2550s |
In 57,448 B.C.E. (approx.), a meteor bearing Forerunner symbols crashes on the planet that will be known as Sigma Octanus IV. It will be discovered approximately 60,000 years later.[1]
