What if Hitler had died in the gas attack on his trenches of World War 1? What if FDR had died from polio, like so many did at the time, rather than lived? What if Lord Halifax had not stepped down and had signed a peace treaty with Hitler?
Alternate history, also known as counterfactual history, are common in the dieselpunk genre.
According to Jeremy Black and Donald M. MacRaild, in their book Studying History, counterfactual history is, "at the very root, the idea of conjecturing on what did not happen, or what might have happened, in order to understand what did happen."
|Dieselpunk novel "Man in the High Castle" written by Philip K Dick, now an series on Amazon Prime|
Click here for an interesting blog dedicated to counterfactual history.
Click here for an online list of novels based on counterfactual history
Click here for the web site of the The Sidewise Awards for Alternate History, which awards the best counterfactual history
Do you want to write a counterfactual history story? Here’s a good article on what to avoid