Questions tagged [timeline]

A timeline is a paradox filled science fiction plot device consisting of a series of chronological events, each a link from the past that leads up to the present. Timelines are sometimes portrayed as being vulnerable to alteration and are often threatened by the actions of time travelers.

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The Tunnel (Korean) - How come this character has the same name in the old timeline?

In the 2017 Korean TV series The Tunnel, a detective named Park Kwang Ho accidentally time travels from 1986 to 2016 through a mysterious tunnel, while investigating a series of gruesome murders that ...
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Why does Neil do this?

After Neil catches up to the masked person in the airport, he stops the protagonist from killing the inverted masked person. Then why did Neil see a need to stop him from killing the masked person?
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Did the events of “One More Day” erase Mary Jane's pregnancy from the timeline?

The controversial One More Day storyline from 2008 famously altered Marvel Earth-616 history so that Peter Parker and Mary Jane Watson were never married. In the revised timeline, a random mishap ...
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Earliest known story involving time-travel within a self-consistent timeline?

Stories involving time-travel often suggest that history can be changed, like in Back to the Future or Star Trek (2009). However, some such stories suggest that all events within a given timeline are ...
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What happened to Chekov's confiscated phaser and communicator in Star Trek: The Voyage Home?

In the Star Trek: The Voyage Home, Chekov is captured after sneaking on board the USS Enterprise. During his interrogation we see three items of 23rd century origin: Chekov's Starfleet ID Phaser ...
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Why did stopping Vosk from returning to the future reset the timeline (including the past)

In the Enterprise season 4 episodes Storm Front 1 & 2, the ship ends up in an alternative timeline where the Germans overran England and invaded the East coast of the US during WWII. (These ...
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Time travel in Doraemon - was the Stable Timeloop effect ever really adverted?

The basic premise in the Japanese manga/anime Doraemon is that the titular character - a robot cat from the 22 century - was sent to the past to help Nobita Nobi to improve his future. In the first ...
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Do the time travel rules of the Indian movie 24 make sense?

There are basically three kinds of time travel stories in terms of they handle paradoxes: Stories that obey the Novikov self-consistency principle, like the TV show LOST and the movie Interstellar, ...
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What is the canonical age of Xena when she first appears on Hercules: TLJ, and by the end of her own series?

The character of Xena from Hercules: The Legendary Journeys and Xena: Warrior Princess was introduced with a very extensive backstory; she was a villager who became a warrior by force who became a ...
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How does the time-turning event work in “Harry Potter and the Prisoner of Azkaban”? [duplicate]

I know in Harry Potter and the Prisoner of Azkaban Harry and Hermione go back in time, save Buckbeak and free Sirius Black. However, in the actual movie before this event, Harry sees - according to ...
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Are these the correct ages of the characters of Devil May Cry?

I've been investigating different interviews and info that the games and other media like anime and manga provide and I got this timeline regarding characters' ages. Does this seem correct? EVA’s ...
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When was Peter Capaldi's Doctor in “Day of the Doctor”?

This question is pretty much the same as this one, except for the twelfth Doctor instead of the tenth. We see a short glimpse of the thirteenth Doctor in The day of the Doctor, but as far as I know, ...
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Why did Harry Potter take place in 1981?

Why couldn't it be in the 1940s? Were there any special events happening in 1980-1990 that relate to the story? I'm doing this for school and I couldn't find anything.
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Is this a time-travel discrepancy in Gone World?

This is a question on Gone World. At one point, Shannon gets back in time without the formal channel (i.e. getting on her ship and heading back over a period of 3 months). She actually uses the time-...
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Timeline of the Harry Potter movies

Using only information found in the 10 Harry Potter movies, (and not using stuff from the books), what timeline of events can we make for the Harry Potter Universe? To keep this from getting to broad,...
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Why did the Vex simulate the future when Atheon is Time's Conflux?

Atheon, Time's Conflux, controls the flow of time throughout the collective Vex mind from inside the Vault of Glass on Venus. The Infinite Forest is a world-sized "computer" capable of incredible ...
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Did this character die in the original, looped Agents timeline?

Tightly related to other questions: What was Coulson doing at the bifurcation point, in the looped branch of the timeline When was this character supposed to die in the looped timeline? This whole ...
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Why doesn't the 29th century Starfleet intervene when Janeway travels back in time at the end of Voyager? [duplicate]

Over all seven seasons of Voyager, the Starfleet of the 29th century intervened whenever anything was in the wrong time. But why don't they do this when Janeway travels back in time at the end of ...
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When, exactly, does Justice League (2017) take place?

While answering this old question, I ran into a slight problem: it's unclear exactly how much time passes between Batman v Superman: Dawn of Justice and Justice League. I've found multiple sources ...
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Creature that can choose all options in its timeline

I am trying to find a very short story that I read when I was a kid in the 80s, and it is most probably decades older. It was only a paragraph or two long, and it just described an animal or creature (...
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who are all you zombies? a (mangled) quote from a 1980s(?) science fiction story

I'm looking for a short story where a guy goes back in time (I think repeatedly in some form) and the story ends with the guy either wondering or getting confused (or maybe just making a statement ...
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Returning to your own Timeline

Throughout a number of Star Trek Series you see people going back in time to repair timelines. My question here is when they return to their own timeline would it still be left unchanged? As all they ...
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Did Harry, Hermione and Ron see Buckbeak die?

My recollection is that, in the Prisoner of Azkaban movie, Harry, Hermione, and Ron see Buckbeak being executed, before However, this didn't happen in the book, and the idea that they saw something ...
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Wouldn't giving the Grays' Sports Almanac to Biff change the outcome of the games after 1955?

In Back to the Future - Part II, Biff brings a copy of Gray's Sports Almanac back to his earlier self in 1955. Old Biff: [about the copy of "Grey's Sports Almanac" from the future] The ...
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What is the timeframe for Dune 2000/Battle for Dune?

I know that the video games Dune II/2000 and Battle for Dune are not considered canon with the 1984 movie, despite sharing props & overall look-and-feel. The games themselves do not mention the ...
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Do Heptapods have a life expectancy of more than 3000 years?

Louise's mind's perception of time is altered and she can see into her own past/future, but she is not immortal (as per this Q&A) and can't see beyond her own death. The Heptapods state that ...
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How could the USS Bozeman be in the Typhon Expanse? [duplicate]

In Cause and Effect (S5:E18), Picard's Captain's Log states they are charting the Typhon Expanse and the Enterprise-D is "the first Starfleet vessel to chart this unexplored region". This implies it's ...
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What is the true Legend of Zelda timeline?

Is the claimed historical sequencing of events as outlaid here in the correct order? This question assumes an in-depth knowledge of The Legend of Zelda franchise. My understanding of the timeline is ...
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What is the timeline of Black Mirror?

What is the timeline of Black Mirror episodes? Most episodes have Easter eggs that somehow tie them together, and we see the various technologies in various states of development throughout the series....
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Is the Concept of the Multiverse Unique to Superhero Comic Books? [closed]

I'm doing some research into the concept of the multiverse, and I was wondering: Is the concept of the multiverse unique to the genre of superhero literature? Obviously the occasional book or tv show ...
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When does Westworld take place?

The technology in Westworld on HBO seems to more advanced than our current technology, but ridiculously so. However, it has been mentioned by a few character that the park has been open for 30 years ...
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What's the most recent specific historical element that is common between Star Trek and the real world?

It is well known that there appears to be some divergence between the events of the Star Trek universe and ours (in particular, the Augments and Khan Singh, etc.) Related: Has Star Trek ever ...
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When did multiple Enterprises meet after flying into an anomaly?

I remember watching a Star Trek episode or movie, where multiple Enterprises from different times met after flying into an anomaly like thing, but I couldn't find anything on Google about it. Does ...
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Why is Ocarina of Time the splitting off point for the Zelda timeline?

I have read the other questions and answers related to the Zelda timeline on here. But my question wasn't answered there. A few years ago Nintendo finally released the History of Hyrule book. It, ...
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What is the time span of the Prequel Trilogy and Original Trilogy? [duplicate]

Can someone provide a time table or timeline image of the Original Trilogy? I would appreciate if the Prequels timeline will be posted as well. This question discussed about, as I understand, the ...
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Why is Mutant X in a cage? Is this after/before X-men Days of future past?

In X-Men Origins: Wolverine, "Weapon X" is created and Wolverine escapes. In Apocalypse he is back in a case, and escapes again. How are these two Wolverine's connected?
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Who knows about the alternate timeline?

With the new movie coming up I've been wondering: Just how many people know that Nero was from the future and created the alternate timeline they are all now living in? Starfleet Command knows, and ...
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Did Marty wipe his children from existence?

At the end of Back to the Future, Part III, Marty declines to enter the drag race that was shown in the previous film to have disastrous consequences for his musical career. The 2015 fax of future-...
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Stargate: Continuum, time travel, people vanish from timeline at different moments

In the movie Stargate: Continuum, is there an in-universe explanation about why and when Ba'al's failsafe plan was triggered, and why there was a delayed timeline ripple as individuals disappeared at ...
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Did Marty-2 go to the Lone Pine Mall, or was is still Twin Pines Mall for him?

In Back to the Future when Marty first goes to the mall to meet up with Doc he walks past the mall sign which reads Twin Pines Mall. At the end of the movie when he returns to the mall to save Doc and ...
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Star Trek in-universe timeline versus external events: when did they separate? [duplicate]

It's clear from the 1992 start date of the Eugenics Wars that Star Trek's timeline has already diverged from ours. Are there any earlier points of divergence? In DS9's "Little Green Men" episode, ...
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Are there actually fixed points in time?

All across Doctor Who series, we are told about "fixed points in time". That seems to be fully admitted by whole Who community. I was watching Water of Mars, and something struck me: the Doctor said ...
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How could Janeway have used Holodecks as a child when they were new to Picard?

How could Janeway use Holodecks as a child when Picard and the rest of the Enterprise-D crew make it clear in TNG: Encounter at Farpoint that holo-technology is very new? For many of them it's the ...
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What are the known instances of the Doctor's *personal* history being rewritten?

The Doctor says he can't go back on his own timeline (for example, Smith and Jones, "except for cheap tricks"). It's implied it's a very bad thing to mess with his timeline. What are the instances of ...
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What happened to the other characters in the 1985 “Biff-timeline”?

In Back to the Future 2, Jennifer is left on a swing at her house and reality changes around her. But what happens to all the other main characters, especially the McFly family? I know Lorraine is in ...
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How can The Flash still exist, given the events of the last episode of season 1?

Since there would be no So the time line will be altered drastically: remember Eobard said to Wells that he only built the particle accelerator in 2020. So how is it even possible for the Flash to ...
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What is the latest date for the setting in a sci-fi text or movie?

I was thinking of the Mayans this morning, and the controversy about the Mayan calendar in 2012 (through a long and circuitous thought process). But it got me thinking: Someone back 5000 years ago ...
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How many dead Dougs are obscured in Deja Vu?

The plot of Deja Vu movie plays a lot with backward time travel theme. Backward time travel in science fiction can work in one of two ways: immutable timeline or mutable timeline. The first one ...
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What is the point of sending anything back in time in the Terminator movies?

As explored in another SCF question, the only way to answer the bootstrap paradox is to say "every time someone is sent back in time, time branches into a separate line." But if that is the case, ...
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How did Walter send back the Machine in the Amber Timeline?

One of the main plot points in Season 3 of Fringe was the Machine. In the Original Timeline, i.e. the timeline shown in the first three seasons of the show, in 2011 Peter uses the Machine to destroy ...