The DC Comics Universe has undergone several reboots to update stories and origins for new generations.
The three biggest reboots were sparked by significant events, starting with Crisis on Infinite Earths, which changed everything.
Following this, Flashpoint led to the New 52, and subsequent events like Convergence, Rebirth, Doomsday Clock, and Infinite Frontier attempted to unify the narrative.
Only two of these reboots were necessary, as one almost compromised the company's integrity.
Only two of them were necessary.
Author's summary: DC Universe had three major reboots.