2019-05-23 16:54:06 UTC
One other helpful feature of explainxkcd.com is crosslinks to comics on similar thoughts.
Is about Westerns as a genre lasting longer than the Wild West period. There's a link to a post about the question whether the length of all the movies about World War II adds up to more time than the war years. This can be extended up and down. The Grandeur That Was Rome has been talked about since folks realized Rome was grander than what was around them. The Kennedy assassination footage takes longer to view than the event; documentaries and docudramas stretches the definition: if they cover preparations and root causes, shouldn't our measure of the Real Time of the event, too?
But back to the poplit Four Ages of Man: Ancient Egypt and Rome, Camelot, the Wild West, and WWII. There is no genre of "Ohio in the 19-oughts." Are there any future histories where the timeline is marked, or characters complain about eras too dull to talk about?