Alternate History or AH is a fictional genre that imagines what would happen if history had gone differently. It often begins by changing a single historical event, called the point of divergence or POD, and tracing how this produces big changes in the world, diverging it from Our Timeline (OTL) and creating a new, alternate and parallel world. The genre is sometimes also called alternative history, allohistory or uchronie.
Physicists and philosophers theorized the existence of Alternate Timelines and parallel worlds in the late-20th Century. They suggested that time has "branches" as a result of numerous points of divergence in the past. Some speculate that all these branches occur simultaneously, perhaps in other universes. The changes would represent "alternate histories," differing in varying degrees from our own.
These theories have helped inspire the literary genre. Althistory novels experienced a boom in the 80s and 90s with writers like Harry Turtledove and S.M. Stirling. The 90s and 2000s saw many AH-themed video games. Amazon's 2015 The Man in the High Castle, based on a 1962 novel by Philip K. Dick, brought the genre to an even wider audience. On the Internet, Alternate Timelines began appearing in the mid- to late-1990s, first on newsgroups, then on individual web pages, and then on forums and wikis like this one; we started in 2005. Social media like Reddit and DeviantArt now have thriving AH communities, often focused on visuals, but with extensive bodies of written lore. And AH YouTube channels like the Alternate History Hub now boast millions of viewers.
Alternate History has often accompanied stories about time travel. In the Back to the Future movies, time travelers Doc and Marty has to keep going back in time to correct small changes that have had unexpected effects on the timeline. In this scene, Doc nicely explains the concepts of Alternate Timelines and points of divergence. It's a good explanation; there's a chalkboard.
Historians have also used Althistorical thinking to explore how social and political changes in the past may have affected events in OTL. This is known as counterfactual history.
For a more detailed description of Alternate History as a genre, check out Wikipedia's article.
Elements of Alternate History
In alternate history, an author makes the conscious choice to change something in their past. According to Steven H Silver, alternate history requires three things:
- The story must have a point of divergence from the history of our world prior to the time at which they are writing.
- The change alters known history.
- The work examines the consequences of that change.
Alternate history is related to, but distinct from, counterfactual history - what some professional historians do when they speculate about "what might have happened if..." as a tool of academic research. Many historians dismiss the value of counterfactuals, but others have come to its defense, including Scottish historian Niall Ferguson.
A few genres of fiction can be confused with alternate history. Science fiction that takes place in the author's future, but which is now in our past, like Arthur C. Clarke's 2001: A Space Odyssey, is not alternate history because the author has not made the conscious choice to change the past. Secret history - an explanation of real history using made-up or unknown past events, is also not the same as AH.
Alternate histories do not need to:
- Be set in the past. (Note that on this wiki, we require timelines to stop at the writer's present.)
- Spell out the exact point of divergence.
- Have just a single point of divergence.
- Deal with large, world-changing events.
- Include famous people.
- Be written in any one particular style.
Online, alternate history has grown into a large, flourishing community across numerous sites. On most of these, the line has blurred between fans and creators, as fans showcase their own works and help fellow fans find interesting works and timelines, professionally published or not.
Uchronia: The Alternate History List is an online database that contains thousands of alternate history novels, stories, essays and other written content, in several languages. Twice Uchronia was selected as the SciFi Channel's "Sci Fi Site of the Week."
The online community has created a new vocabulary to discuss alternate history. On the Usenet group soc.history.what-if, users invented the term "alien space bats" to criticize implausible alternate histories or to add intentionally nonrealistic elements to timelines. One science fiction reviewer in Strange Horizons called alien space bats "everyone’s favourite SF plot McGuffin." Alternatehistory.com popularized the term wank to describe a timeline where one country does unrealistically well.
Online creators have made some impressive accomplishments. Althistorical maps and other content can be so believable that they're routinely confused with the real thing. Timelines have inspired their own fandoms and fan art. Entire languages have appeared as part of alternate timelines, such as Brithenig, Wenedyk, and numerous other languages created for Ill Bethisad.
Please also see Online Alternative History.
- Sidewise Award for Alternate History - for published AH
- Turtledove Awards - for work on Alternatehistory.com
- Stirling Awards - for work here on our wiki
- http://www.helixsf.com/uchronicle/uchronicle0706.htm (dead link)
- http://www.geocities.com/Athens/4824/ah101.htm (dead link)
- What Happens When People Confuse Alternate History with Real History, by Mitro
- Today in Alternate History, a daily-updated blog, featuring "Important Events In History That Never Occurred Today" in several recurring timelines. Imagine what would be, if history had occurred a bit differently. Who says it didn't, somewhere? These fictional news items explore that possibility.
- This Day in Alternate History, dedicated to showing significant events in years past on this day that shaped history... just, not our history.