I think that the prehistoric should be divided into the 3 scientifically recognized as distinct eras to the next level as deep as generally agreed upon.
http://en.wikipedia.org/wiki/Prehistory
1.
Paleolithic (middle 200,000 BP onwards)
2.
Mesolithic (20,000 to 9500 BCE))
3.
Neolithic (10,200 BC, according to the ASPRO chronology in some parts of the Middle East, and later in other parts of the world and ending between 4,500 and 2,000 BC)
and possibly the breakdown of the so called 3 age system
http://en.wikipedia.org/wiki/Three-age_system
1.
Stone Age (already)
2.
Bronze Age -range spanning approx spanning generally accepted time period
http://en.wikipedia.org/wiki/Bronze_Age
3.
Iron Age -range spanning approx spanning generally accepted time period
http://en.wikipedia.org/wiki/Iron_Age
which could reach up to or could cover/substitute for the Classic Era/Age. I think more people call it the Iron Age and or Bronze Ages, than the Classical Age.
Just saying...
I would also address the Expansion of the Future Era into 4 distinct (selectable/optional) Eras for completely different reasons than Mr.Azure was thinking, into:
1.
Trans-Human Era
2.
Galactic Era
3.
Dimensional Era - Multi-verse, Alternate Dimensions, Minibig Bang/Wormhole exploration, Sliders (Tv-Show), portal between universe sci-fi exploration.
4.
Transcendence - Beyond Future - Universe/Multiple Galaxy/Galactic Clusture - Even Imagination -Energy/ Pure/Energy Transformation/Human Existence -Exploration of the limits of possibility and creation - etc.
(extrapolation of Isaac Asimov's short story The Last Question)
Past Heat Death / Exceeding Humanity's self destruction / Contraction of the Universe
(some of this coincides with Sid Meier's expansion/extrapolation of Civilization (SMAC/SMAX) Alpha Centauri which ended with Transcendence as the ultimate future tech. I say take it beyond to the next level.
What haven't we imagined yet?
Can the C2C/Civfanatics/Greater 4x game forum world/Science Fiction speculated/imagined what that could be?
Jack Chalker did a good job of considering it (Which I've read and enjoyed),
http://en.wikipedia.org/wiki/Jack_L._Chalker#The_Soul_Rider_series
Isaac Asimov, Arthur C. Clarke (Rama Series, Childhood's End for example), etc.
I just don't see why the Realm of Science Fiction can't be explored in C2C.
(or Fantasy inclusion as optional (not as personally interested) or mod-modded in the mod-mod section of C2C (see Terry Brook's(Shannara extensions) or Fred Saberhagen's(Swords books/Empire of the East) attempts to bridge Fantasy book series into post-apocalyptic reality explorations to bridge into Civ - Someone has recently mentioned the option of merging FallFromHeaven with C2C, and Fantasy is just as valid a potential optional exploration as Science Fiction). Might be fun.
other timeline era possibilities for the future.
http://en.wikipedia.org/wiki/Timeline_of_the_far_future
http://en.wikipedia.org/wiki/Future_of_an_expanding_universe
Not to mention all of our previously discussed alternative eras and popular ones.
http://en.wikipedia.org/wiki/Outline_of_science_fiction :
"
Eras
Genres concerning the historical era of creation and publication include:
Cyberpunk—noted for its focus on "high tech and low life" and taking its name from the combination of cybernetics and punk.
Golden Age of Science Fiction—a period of the 1940s during which the science fiction genre gained wide public attention and many classic science fiction stories were published.
New Wave science fiction—characterised by a high degree of experimentation, both in form and in content.
Pulp science fiction
Scientific romance—an archaic name for what is now known as the science fiction genre, mostly associated with the early science fiction of the United Kingdom.
Steampunk—alternate histories in the spirit of Jules Verne, where a Victorian era steam-powered society develops advanced technologies.",
"
Combinations
Main article: Genre fiction
Genres that combine two different fiction genres or use a different fiction genre's mood or style include:
Alternate history science fiction—fiction set in a world in which history has diverged from history as it is generally known
Comic science fiction
Science fiction erotica
Adventure science fiction—science fiction adventure is similar to many genres and is emphasized in popular culture (see Romantic Science Fiction and Space Opera)
Gothic science fiction—a subgenre of science fiction that involves gothic conventions
New Wave science fiction—characterized by a high degree of experimentation, both in form and in content
Science fantasy—a mixed genre of story which contains some science fiction and some fantasy elements
Science fiction opera—a mixture of opera and science fiction involving empathic themes
Science fiction romance—fiction which has elements of both the science fiction and romance genres
Science fiction mystery—fiction which has elements of both the science fiction and mystery genres, encompassing Occult detective fiction and science fiction detectives
Science fiction Western—fiction which has elements of both the science fiction and Western genres
Space Western—a subgenre of science fiction that transposes themes of American Western books and film to a backdrop of futuristic space frontiers.",
"Related genres:
Fantasy
Science fantasy
Mystery fiction
Horror fiction
Slipstream fiction
Speculative fiction
Weird fiction
Superhero fiction"
Shouldn't every idea for an Era or favorite story/book/movie has a ongoing and open discussion thread on C2C, and possibly the mod-mod thread for serious inclusion?
Not to mention favorite idea or technology, whether it is likely or possible?
Not to mention explorations of specific works and series. Star Trek, Star Wars, etc.
Glossary of Science Fiction Ideas, Technology and Inventions
http://www.technovelgy.com/ct/ctnlistalpha.asp
and
Google this:
"
speculative technologies of the future"
and explore, list ideas you like here in this thread. Please, yes this means you who are reading this!
and historical explorations, ideas, and anything else we can dream up, research, extrapolate, and explore to everyone's satisfaction.
I think an idea would be to have toggleable (optional) playable universes such as Star Trek, Star Wars, Bablyon 5, Fantasy(magic), Alternative Earth, Neanderthal/dinosaurs/ extinct animals live longer, Any What-If extrapolation scenarios option(world had no seas, gunpowder not invented, computers invented early(Difference Engine -book), etc.) Time Travel, Actual Historical minor variation (Rhyse) , Popular alternative earth fiction (Harry Turtledove, What Might have been, Connecticut Yankee in King Arthur's Court, Cross-Time Engineer (books), type eras/colors to play as game and/or options. Basically being able to select these colors as game options/added random/inserted eras. It need not be more than a grouped/ selectable collection of technologies/units that could be activated/triggered. Not everyone's cup of tea/consensus but explorable/ and on mod-mod modules for those who want them or to work on them. Allows people to explore an add on steampunk or fantasy module, or to turn off prehistoric/future eras for those who want/don't want to explore them. Basically make it easier to make/explore these things.
What do you all think? and Why not?(I've said much of this before here in the Civfanatics/C2C forums multiple times.)
More doesn't have to mean less meaningful. More can mean more in depth or detailed or accurate.
So why not explore/consider these things, or at least open ongoing discussion threads?