Supplemental: Sci-Fi Take on History

One common sci-fi take on history is "alternate history".  "What if?" scenarios including topics like, "What if Hitler made it into art school?" or "What if Japan had decided against attacking America?" or "What if Lincoln hadn't gone to the play on his last night?"  Here are a couple examples of that:

The Man in the High Castle is from a novel by Phillip K. Dick in which the Axis powers won WWII:

CSA: The Confederate States of America is a "mockumentary" based on the idea that the South won the Civil War.

Another common theme in science fiction or fantasy is revisiting the Holocaust, finding ways to go through time and kill Adolf Hitler, or showing what made Hitler become the villain he was.  Here are some interesting takes on that theme for you to watch in your own time.

One interesting article explains why you can't go back in time and kill Hitler: http://io9.com/why-you-can-t-travel-back-in-time-and-kill-hitler-1267520777

Another article is called, "Time Travellers: Please Don't Kill Hitler" and it makes some interesting points: http://www.theguardian.com/science/brain-flapping/2014/feb/21/time-travellers-kill-adolf-hitler

Another example of time travel to change the future involves going back to save President Kennedy.  http://www.avclub.com/article/back-and-to-the-right-17-alternate-retellings-of-t-105801

The Twilight Zone: Season 1 Episode 5: Cradle of Darkness:

The Twilight Zone: Season 3: Episode 9: Deaths' Head Revisited

Death's-Head Revisited (Dir. Don Medford, 1961) from CAJ on Vimeo.
The Twilight Zone: Season 1, Episode 49 Profile in Silver

The Twilight Zone (Radio Drama): Back There

Twilight Zone: No Time Like the Past

Twilight Zone: No Time Like the Past
Twilight Zone: No Time Like the Past