So Glad you took an interest in this world! Here are some answers that I hope will be satisfactory!

The Real Answer:
The real answer is lame. When I created this map, I put the world speed in X40 through the secret settings button. I also really liked the idea of having a group of goblin/Orc warriors dwelling in the mountains. The problem with adding the Orcs to the game is that they always dominate and kill all other races. To counter this problem, I spawned in a set number and gave them infertility. I thought it would be cool that as people downloaded the world and spawned in their own kingdoms, they would eventually have to face an army of these Orc warriors who would have no way of replenishing. That way, when other species would invade the Orc territory, it could feel like they were purifying nasty mountain goblins and having a dynamic impact on their world. I don’t think I ended up committing to it but I’m pretty sure that’s why there is nearly 500 dead cuz I just let them die off lol.

Lore (inspired by another map’s history):
The main theme of this map (for whatever reason lol) is the pursuit of immortality.
I like the idea that the there was a semi-unrecorded age before the 5150 years. Much like how in the real world we have BC and AD, I think it would be cool to have an unrecorded history that spans further back. This way, there is more of an opportunity to establish a backstory for Luvun and the Ancient Vampire. But this can easily be adapted or changed if you want it to take place during the 5000 years (the death counter wont match up tho lol).

Here is the legend from before time was recorded (-1000 BCE to 5150):
It is speculated that the Ancient Vampire was the first true vampire on the continent. It is likely that in the first unrecorded age, he was born into a powerful kingdom. This ancient king grew his kingdom through war and conflict into a great Empire.
We can call it the Empire of Unaereok, and it was founded by Emperor Anor the Overlord. The warrior to lead his conquest was Luvun the Champion of Unaereok.
The Empire controlled the northern most reigns of the map for many years. The capital was called Sonore (named after Anor) and was situated where the Cult Rock is on the map. This location was chosen due to the geographic protection the mountains provided from attackers.
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His Empire was in conflict with two other kingdoms:

The first was the kingdom of the Ancient Elves that lived along the coasts and islands. This also included the island with the secretive Brotherhood of Immortal waters. This brotherhood protected the living waters of immortality.
There were only four guardians who could drink from the living waters. The 4 guardians were sworn into celibacy and were not supposed to leave the island. If they stopped drinking from the water, they would surely die. Talnor the Ancient One was the first to discover the fountain and appointed his 3 other companions, O'Asad, Adari, and Oeua to help guard it.
They were all guided by the true Lord of Immortal Waters and merely worked under the power of this ancient being. The Lord of the Waters was an ancient creature the size of a regular person who had protected the fountain of living waters since the creation of the world.
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The second kingdom that opposed the Empire of Unaereok was the kingdom of the Con Dynasty. They were led by King Yglalore who was a militant leader. The king hated the empire and led many invasions into his territory. King Yglalore sought greater power and turned to the powerful sorcerer Dabkin. Dabkin also desired immortality and researched heavily into undead and unnatural re-animation. Through his studies and unspeakable evil experiments, he discovered he could re-animate soldiers of the Con Kingdom so that they could continue fighting after death. Dabkin would eventually learn to re-animate his own self as an undead skeleton lich.
The Ruler of the Con Kingdom was very pleased and had Dabkin invade the Unaereok empire with his many undead.
Luvun, the Champion of Unaereok, was able to stop the invasion and eventually, through several campaigns and many years, kill King Yglalore.
The empire crushed this kingdom and slaughtered all of its people, including Dabkin. After the death of Dabkin, his Lich form was revealed to the world. Luvun was able to subdue and capture him to obtain his unprecedented knowledge. The Empire constructed the first crypt to imprison his undead body in. This sparked a new interest for emperor Anor the Overlord.

Anor had become increasingly powerful but also paranoid about death. What he desired now most of all was a way to indefinitely prolong his power. Therefore, he began an invasion into the Elvish Capital of Lon in the search of additional secrets about immortal life. He knew the Elves had information about immortality but was unable to ascertain it from them.
As time progressed, and more violent raids occurred, the emperor became impatient and instead turned to a dark and twisted way of immortality. The emperor conducted many experiments on Dabkin. He would kill the lich and have him re-animated a number of times (this is why it says the Lich is only 1600 years old because he could be killed and re-animated multiple times). However, the problem still presented that the Lich could only every revive as a skeleton and not with flesh.
Toward the natural end of the emperor’s life, a way was finally discovered to create a twisted undead life. Yet, this way would require a terrible number of human sacrifices. The emperor converted the Capital city of Sonore into a monument to sacrifice. After killing many innocence, the emperor finally achieved his goal (along with all the drawbacks that being a vampire would entail). The first vampire was born, and his commander Luvun would eventually undergo the ritual as well and be converted into a powerful vampiric lord.

However, Talnor detested this evil that took place. He rallied the remaining Elves to destroy these abominations.
Many Elvish Cities fell into ruin by the might of the emperor. With the Vampiric power that Overlord Anor now possessed, he felt no reservations about fighting on the front lines of battles and destroying the Elvish opposition.
However, due to the power Luvun had also received, he began scheming ways to betray his master into the hands of the Elves. Luvun sent a small detachment of his men to show the Elves how to create their own Crypt that would be able to contain the emperor.

As war continued between the Elves and the Empire, an ancient Greater Dragon was attracted to the continent. This dragon was also searching for the Immortal Water Spring. For 50 years, the dragon burned the empire and the land of the Elves to the ground. Many were forced to flee by boat while most were burned to death.

The emperor rallied his men and was able to eventually kill the beast. Although this victory greatly weakened the vampiric powers of the emperor. At this point, most of the imperial cities had been torched and abandoned during the 50 years the Dragon had tormented the land.
The weakness of the emperor gave the Elves an opportunity to finally strike. They led their remaining warriors and champions against the weakened emperor and his last imperial legion.
This battle was massive, chaotic, and gruesome. In the end, the Elves managed to capture Emperor Anor. The Elves sustained countless dead in the fighting but also did not spare any of the imperial legionaries.
The Elves then imprisoned the emperor in the Crypt prison that Luvun had taught them how to make. This sealed away the emperor for 5000 years to the point where he was nearly forgotten altogether.

Luvun had not anticipated an attack by the Elves so soon after the decimation of the great dragon. While the battle unfolded, he fled into the mountainous caverns of the north. This is where he created the fortress of Bloodspire. In this fort, he would tend to the wounds that were sustained in the fight against the Greater Ancient Dragon.
Although he had indeed betrayed the emperor (at an inopportune moment), he was not able to become an emperor himself. The reason for this was because most of the citizens and warriors of the empire were now either charred bones or fleeing to new lands. Still, some warriors did go with him to his fortress where they would live for a number of years before starving to death. Luvun did not seem to care one way or the other. He simply continued fortifying his fortress, tending to his wounds, and scheming ways to make a greater empire in the future. This pattern would continue for several millennia.
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After the victory against the emperor, the elves would try and rebuild their ruined cities, but they would never be the same.
In the thousands of years after the battle, most would sail off in search of better lands and forget about the Brotherhood of Immortal waters and the Ancient Vampiric Crypt.
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In the year 2279 of the first age, an expedition by the Immortal Brotherhood was undertaken to see what had happened to the empire. Cult Rock was discovered, and a small colony of non-immortal elves would establish a base guarding the rock for some time. Eventually this colony would face hardship in a great famine, and all perish in the year 2404.
In the year 2601, the Steward of the Forest would come to dwell in the Northern lands of the continent too. (An unmarked druid that can be found when the world is first created).
Finally, in the year 3980, a group of Cold ones of the North moved in (looking for the Immortal waters) and created their fortress.
And in a blink, 5000 years would pass or something…
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I sat down and got super into this but if it doesn’t fit the vibe of your lore then scrap it LOL. These are just fun ideas to make a world history more interesting so please rework them / change them to suit your head cannon better.
I’m very interested in learning what happened from 5150 to 8500. Please let me know some of the highlights, coolest kingdoms, and best moments!

Thanks so much!

You have answered so many questions for me, it is insane how well this works with my story.
Unfortunately the Vampire in the Crypt was killed very early on into the world by a military group called the Redcap Sellswords, who would later be overthrown in the year 5350 due to their influence on the world by a kingdom called Coldstone, a North based territory outside the mountains that Bloodspire resides in. Coldstone continues to dominate the world with a clan containing 8 Kings (meaning also 8 leaders for those kings so that they control the kingdom clan-wise)

I always wondered who the Ancient Dragon Bones belonged to, and at last I know thanks to you, they were slowly dissipating in the ocean until very recently when a castle build in the ocean expanded south to encirculate the bones and now they are part of the Moonhall's floor.

I didn't exactly document everything from the year 5150 as I didn't expect the world to become this big thing for me, however where there are gaps I have illustrated or written them down.
This world and the people in it has inspired me to create countless drawings that I'd love to share with you, I thank you again.

Dabkin was killed by a random Coldstone citizen named Abuponi, which gave him the title of Necroslayer. This happened before I documented the world however I did find him later on with the mageslayer trait and the staff.

The Big Baer was slain very early on before the world had been dominated by the kingdoms in it by a kingdom called Grasspire. Grasspire no longer exists today due to the biggest world war- the Waterwars- where all the coastal Kingdoms warred for the title of King of the Coast, (and the world was very politically unstable, they didn't just fight for a title)

The Steward of the Forest and Luvun continue to live in my world, with the Steward seen as a hero for the world for helping to defeat Demigods that have gone mad, or to fight a man cursed by the Dragon after he killed a dragon called "Ben the Monstrous", that man was called Vede, he played an essential role in the world and earned a 2 phase bossfight when his time came (his human form and then a dragon form)
Luvun lives in his mountain castle, still wandering the halls with little to no personality, yet the halls are full as after the world began some settlers in Coldstone moved into Fort Bloodspire which caused the population to boost to 300.

The Immortal Waters massacre of the year 7512-7513, where in which all the Elves and the Lord of Immortal Waters itself were murdered by a random man I called Theocritus (basically means God Judge in Roman iirc) Theocritus was given a place in the Demiglory Keep for his work (the world is pretty elf-racist) The Demiglory Keep is a location where all good demigods reside. Theocritus was swiftly exiled to the Cursed Land of Hadran, a cursed, swampy land where people can be exiled to for misdeeds, he remains there today.

The Cold ones were defeated in a short battle orchestrated by the first King of Snowdrift as the start of the world, however he would also die to them before they were defeated.

I must apologise as I didn't know some of these dead people were people that could reanimate themselves or just couldn't die.

A common theme in my world is the love for Miracle Born people, if you're Miracle Born then you're most likely going to succeed in life. There are 4 Miracle Born people from the start of the world, all being born around the year 5160-70, since then there have been 12 more, not all of them being human, such as the Eternal Crab of the Volcano (a crab that sits in a volcano forever)

I'd love to share the rest of the world's history and locations with you as everything I've said here is only a tiny bit of the world's story. My discord is: captainfishtinger

I look forward to sharing my work with you.