The Justice League is the greatest team in the DC Multiverse. The group comprises the greatest heroes on Earth and they've saved creation many times over. The Justice League's history remains one of the most complicated in comics. When multiple continuity reboots have changed things, this can make it very difficult for new fans. It's hard to know where to start and what counts, which can be daunting.
Source：https://www.cbr.com/best-important-justice-league-comic-lore/
