2504


 * January 2: A battle takes place in the Theta Ursae Majoris System between the UNSC and the Insurrectionists.
 * June 19: James Cutter is sent to the Officer Candidate School where he was taught Command and Navigation.
 * August 13: Professor Ellen Anders is born on Arcadia.
 * The UNSC Secrets Act of 2504 is passed.