Vids I Dig 216: Comic Tropes: The History of Every ‘Crisis’ in DC Comics

From Comic Tropes’ YouTube description: The CW is adapting DC Comics seminal crossover event Crisis on Infinite Earths. This video takes a look at the various Crisis stories in DC Comics which have been running since the 60s. The word “crisis” in a title in DC Comics tends to imply an epic event with changes to their ongoing comics.