~2470 - 2480 CE

Sometime prior to the Jiralhanae’s inclusion into the Covenant in 2492, a decade-long civil war known as the First Immolation devastated the Brute homeworld of Doisac and reduced the Jiralhanae society to pre-industrial technologies.

2492 CE

In 2492, soon after the end of a devastating civil war between Jiralhanae that caused a total collapse in Jiralhanae society, the Covenant visited the Brute homeworld of Doisac and invited them to join.