The Arrowverse and the Tomorrowverse’s Crisis On Infinite Earths crossover events adapt the eponymous DC Comics crossover storyline, but each of them achieves it in their own distinct way. DC Comics’ original Crisis On Infinite Earths continues to be one of the biggest crossover events not only in DC Comics history, but also in the history of the comic book medium as a whole. It successfully brought together characters from several parallel universes and created a cataclysmic event of unparalleled dimensions, establishing the concept of a multiverse-wide rebirth that would be copied multiple times afterward.
https://screenrant.com/justice-league-crisis-infinite-earths-arrowverse-tomorrowverse-which-better/
