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 * June 29: Major Dallas Kendall is killed in action during a last stand in which he saves the lives of his squad and 343 other survivors who have survived the attacks of the Hollow. The exact circumstances of his death are unknown as his squad and the remaining survivors recieved his last trasmission in orbit. Sadly enough, he turned 46 on this day.
 * September 25: A musical event, Believe, takes place at the UNSC Symphony Hall at 1900 hours, and performed by the UNSC's own Symphony Orchestra. It is centered on remembering Master Chief Petty Officer John-117 and his service to the UNSC.
 * After November 7: Onboard the , Cortana, showing clear signs of Rampancy, files a report on the history of the Forerunners and Humanity.