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25th century

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2458 was a year in the 2450s in the 25th century.


Circa 2458[edit]

These are events that are based around this year, and may not fall on this year specifically.
A century prior to October 29, 2558

  • A human colony is established on Cassidy III, but is soon abandoned by governing authorities.[1]


  1. ^ Halo: Bad Blood, chapter 2