This is another entry requested by A Dragon's Claw. Thought I'd put this out before two weeks pass by.
Enjoy!
PREHISTORIC MINECRAFT:
Now, when we think prehistoric, you first think the dinosaurs… early hominids… and biomes that no longer exist or were replaced. These are actually realistic examples, but they, of course must be explained. All the information will be explained in paragraphs according to questions that have been asked for a long while.
We'll begin with the whole thing of dinosaurs. Some recent discoveries of fossils in swamp biomes suggest the possible idea of dinosaur like creatures walking the face of Minecraftia. On 1989, a player named Hugo_the_finder discovered an unusual looking block after excavating a mass of clay from the Krhus River in the Syha'ir Swamp. After further excavating, it revealed a huge bone fossil that had coal ore within its structure. This dug out the first fossil to be ever found. This led to the questioning of where did these fossils come from? WE had no idea and the idea of dinosaurs appeared. This was disproven almost as fast as it was proven due to the major plot hole: where are the other fossils? This was proven even further after the only skeletons found were in deserts and swamps. Some suggested that due to the nonexistence of limbs from the skeletal fossils, these creatures may have been a giant slug with an endoskeleton. Seems to make some sense, but how did they die off? Well, for starters, the desert skeletons are convincible that it was due to change in environment, via aridity, heat change, and loss of water. In the swamps, this isn't the case. Some suggest that the living slime cubes are in fact the descendants of these giant slime dinosaurs that have adapted to the swamp environments, only for their ancestors to die off.
The next part of prehistoric history that oddly seems to be historic is the ocean monuments. This may seem surprising, but what exactly is the prismarine material? The guardians and Elder guardians that inhabit the monument are only found in the monument. Yes, some say they "migrate" but this was never shown, found, or even photographed. This brings back to a very interesting question: are the guardians a devolved species? This question seems pretty good as to the latest discoveries of underwater ruins. The ruins and the monument date one after the other, both have treasures inside that are from around the era, and to top it off, unusual technology of sea hearts, officially called Heart of the Sea, seems to date between the era of the cities and monuments. This would make a very sound theory… if the evidence of so happened. There are no skeletal remains in the cities of any guardians, or any DNA that would relate the guardians to even a previous ancestor.
Speaking of ancestors, evolution is one topic that should be covered. In the real world, humans evolved from apes; in the Minecraft world, players evolved from pigs. Alongside players, Villagers, Creepers, and even Pigmen evolved from pigs as well. However, what triggered these divergent evolutionary stages is currently unknown, but we do know that the Creepers evolved from the pigs going underground while the Villagers and players evolved above ground, and Pigmen evolved in the Nether. Of course, how did the pigs get there? Many believe it was Herobrine, as said through folktale, who cursed the pigs with a lightning bolt and sent them to the hells of the Nether in order to create an army of demons. Sure, it sounds silly, but then again we don't know if the pigs were brought there by anyone or possibly there was a passage between the Nether and Overworld.
One very common theoretical topic that is heavily debated is the topic of the End. As said before, the End has been scientifically classified as an artificially constructed area. This… blows minds away worse than a cannon. The most identifiable reason is the endstone which is rich in obsidian, making it blast proof, but it isn't black or purple like it. Now, you may be wondering why this is prehistoric. For starters, prehistoric in terms of the Endermen are pretty far back when seeing that the first Endermen arrived possibly only a couple years after the Withus Empire first formed. Sadly, the knowledge of what the first Endermen and their arrival are extremely scarce to the point of it just being a permanent mystery.
Lastly to explain in the topic of prehistory is the Minecratia world itself. That doesn't mean ridiculously long ago as in billions or even millions of years, but not so close to recorded history. Several biomes didn't exist such as the mushroom flats and ice spikes. Mushroom flats, even though they may contain mountains and ravines, are theorized to have been created by an enormous growth in fungal spores that germinated into the mushroom giants and mycelium on the floor. Ice spikes are another biome that didn't exist in prehistoric times. The icy plains first existed in terms of the last ice age, then the spikes came as a sharp, yet quick, ice age took over afterwards and created these huge spikes.
There are possibly more areas that need to be addressed, but those areas are small and don't contain as much info as some of these.