Crisis on Infinite Earths happened in 1919-04.

The ISBN of Crisis on Infinite Earths is 1-5638-9434-3.

The Barry Allen Flash died in Crisis on Infinite Earths #8.

After "Crisis on Infinite Earths," the DC Universe was restructured with a single Earth and timeline. This event simplified the continuity and history of the DC characters, leading to a new era of storytelling that became known as the post-Crisis era. Many characters were rebooted, origins were retold, and new storylines were introduced to reflect the changes made by the event.

The ISBN of Infinite Crisis is 1-4012-0959-9.