Suggestions

• What elements were put in DC's comics years before Crisis on Infinite Earths?

• How is the Anti-Monitor defeated?

• What is the DC Universe (DCU)?

• Who is waiting for Alexander Luthor Jr. to reopen the portal between the positive and antimatter universes?

• Which issues of Justice League of America are tie-ins for Crisis on Infinite Earths?

• When was the novelization of Crisis on Infinite Earths published?

• What is the purpose of the five towers?

• Who were the first DC heroes to suggest the existence of the DC Multiverse?