Note: This post is going to be moved when I provide more military information for the other kingdoms later. For the moment, however, here is some background on Hylarin demographics.
Population, aging, and demographics of the Hylar
The Hylar are unusual among elves of this age. Many elven kingdoms have become isolationist, wishing not to interact with the shorter-lived and usually shorter-sighted races (because it's dangerous), and living out their long lives in peace. For this reason, the age of adulthood in most elven nations is around 100 to 120, because they feel no need to rush their lives in any way, and the age of death varies from around 600 to many thousands, depending on the mythos in which the elves live (some mythi require that elves be immortal, others do not).
The Hylar are not like that - indeed, they are much more like the elves of earlier ages. Hylarin families still have many children (for elves), explorers of the tribe still ply the seas, and most members of society voluntarily go on some kind of adventure at some point in their lives. In many ways, this makes the Hylar much more like humans than what is often thought of for elves: their lives are usually much shorter and more turbulent, and while they are unwilling to compromise many of their basic principles (usually those associated with good alignment), they are open to social and cultural change. Theologians say that this is largely on account of the peculiar religion that they practice.
Religion: The New Elven Covenant
According to myth, the Hylar are the descendants of an ancient elven matriarch named Maialiwen, who was of the Sindar* people and migrated with the remnants of her tribe eastward out of the ancient subcontinent of Beleriand before it was destroyed long ago. Maialiwen, it is quoted, rested for a time in the Dwarven capital of Khazad-dűm, and while there she sealed a prayr with the Gods, who then presented her with what has become known as the New Elven Covenant. It was not for many years later, after Maialiwen had perished in battle while leading her people eastward that her three daughters sealed the Covenant with the Three Valier who have since become the primary deities of Hylarin religion.
In Sindarin myth, and in the myths of many other of the more ancient tribes of elves, the were to have been two Children of the Creator deity to come into the world, these being the Firstborn (the elves themselves) and the Followers (generally considered to be humans, and related races such as halflings). Many Elven myths, including those of the Sindar, explain that the appearance of other intelligent creatures into the world was achieved through a divine alteration of the fabric of reality, which has the ability even to alter the past in order to input these 'new' creatures and their histories, but all of these myths also agree that there was to be a time of the Elves and a time of Men. The Sindar believe that the time of the Elves is now over and that the time of Men has come, which, they explain, is the reason for the general isolationism of Sindarin peoples today.
While Hylarin myth contains the same basic principles of the Time of Elves and the Time of Men with the latter succeeding the former, the Hylar do not believe the true Time of Men to have come yet, its onset delayed by the New Covenant Maialiwen and her daughters made with the Gods. This Covenant, a Hyla would explain to you, combines the attributes of Elves and Men in the Hylar, making them immortal in spirit as the Elves (Hylar and Sindar both believe in reincarnation), but mortal in body as Men. Being mortal of flesh, Hylar also believe that in order to continue to exist in the world and to bring about the true Rise of Men that they desire to see, a race of men prepared to inherit the grace of the elves, the elves must continue to live, and live wisely, heroically, and capably, and strive to show men, by their example, how to share in the beauty that is the elven legacy.
It is for this reason that Hylar claim they are different from most other elves. Their Covenant, they believe, can extend to all elves, should they accept it, but thusfar only they have actively taken to it as a people; elves of other ethnicities that adopt Hylarin religion are sufficiently few that they inevitably wind up being assimilated by the rest of Hylarin culture thereby becoming Hylar themselves.
*It is virtually certain that the Hylar are an offshoot of the Sindar, as evinced by many aspects of their culture, including, most obviously, their language, which has added a few words from other languages, chiefly Dwarven and Draconic, but otherwise is nearly mutually intelligible with Sindarin. Indeed, those few Sindar ancient enough to remember what they call the First Age and who have visited the Hylar remark that the Hylar are indeed very similar to the Sindar of the First Age, moreso than today's Sindar even - and specifically, they most resemble the elven people who dwelt at the mouth of the river Sirion together with the remnant Edain houses before the arrival of the Army of the Gods.
A typical Hyla's life
It is difficult to say what a 'typical' Hyla's life has looked like through her people's history, largely on account of the fact that the Hylar have gone from large, healthy populations to barely escaping extinction at least three times in their history, and probably more than that (it is believed that Maialiwen's tribe was also nearly wiped out, indeed was closer to being wiped out than the Hylar themselves have ever been). Nonetheless, some common demographical generalities can be made, and these generalities drive Hylarin population dynamics at a large scale when their population is healthy.
Childhood
Like most elves, during childhood, Hylar age at roughly half the rate of human children, but instead of the age of adulthood being placed at sexual maturity as in humans (about 16, for a healthy human), the Hylar prefer to be more fully physically grown before being considered to be adults. Usually, adulthood is given to children at about the age of 40, at which stage a Hyla's apparent age to a human would be about 18-20. It is, however, up to the parents to determine whether their child is an adult, and some children are declared to be adults at a slightly younger age, while others wait to be older. The thing that separates the Hylar from most other elven cultures is the willingness to declare an individual an adult at the age of physical maturity; most elven societies today require an elf child to have a period of experience having been fully grown of at least as long as they were physically growing before being considered full adults (again, ancient elven cultures were often more like the Hylar).
Early adulthood
Upon achieving adulthood, a Hyla becomes legally independent and can seek a profession of their choosing, as well as a suitable mate. It is common for the eldest child of either sex to inherit the family business (or be prepared to, should the parents die unexpectedly), but not universal, especially if the eldest child displays talent and interest for something else and a younger child displays more talent for said family business. Younger children have several options, either to work as junior members in the family business (meaning less experienced, but not automatically subordinate), or engaging in other pursuits such as enlisting in the military, the priesthood, taking up adventuring or settling new land. Family members happily support each-other throughout their lives, however, and accommodations are almost always made to house members of the family, and their families, who have taken up the same or other professions.
Adventuring
The desire to explore, innovate, push the limits of their knowledge, and to aid just causes where possible is perhaps the most defining characteristic of the Hylar relative to other elves in today's world. Most Hylar refer to the physically active side of this kind of behavior as adventuring, and Hylarin mythology and history are rife with tales of heroes and adventurers seeking out secrets of nature or the past, or in valiantly trying to set wrongs to right.
While the image of 'adventurer' in people's minds commonly conjures up images of the armored party of heroes containing the familiar roles of warrior, thief, arcane and divine spellcaster, seeking out treasure in ruins or crypts while braving dangerous monsters in doing so, a relative few Hylar actually engage in this type of adventuring. However, the equally iconic image of the hunter, pilgrim, or explorer making his way through trackless forest or scorching desert, visiting exotic cities learning of their cultures, joys, and woes, and yes, sometimes aiding the downtrodden where they find them, is something that most Hylar do engage in at some point in their lives, although most often a Hyla's adventuring companion is his or her spouse and not a knight errant's trusty squire or a nature priest's loyal wolf companion. Many Hylar even make their careers as adventurers of this sort, as merchants, explorers, pioneers, or even scouts or spies for the military. The Hylar believe this is part of the example they wish to set for the rise of Men that is to come, and they willingly accept the innumerable dangers that such travel incurs. And, while most Hylar do not engage in the iconic dungeon-delving, a larger fraction do than most other cultures.
Marriage and child-raising
Most Hylar marry between ten and twenty years of reaching adulthood, carefully choosing a spouse they will be happy spending the rest of their lives with, although the unlucky may have to wait longer before finding an appropriate mate. Arranged marriages are rare (although they happen), but even in those cases the people to be married have full control over whether or not they actually marry. As with the Sindar, the actual act of marriage is considered by law the sexual union of the couple being married while the bride is not suppressing her ovulation cycle (which elven women can do), and requires no ceremony or witness. In Hylarin society, it is customary for the couple to marry first, and then hold a wedding afterwards as a celebration of their union, as opposed to a justification for it beforehand. Hylarin society does allow divorce, but divorce is very rare: most couples choose their mates wisely, and are married until one or, more often, both spouses die.
The first ten years or so of a couple's marriage are most often childless as the new couple establishes themselves in their lives. The first child usually comes during the next decade, and the second two to four decades after that. After the first two children, Hylarin couples who live long enough typically have two more children about fifty years apart from each-other and from the second. Couples who continue to live after that usually have no more children for at least a century, and sometimes more, although it is not unheard of for couples three or more centuries into marriage may suddenly decide to have a child again and do so. Nonetheless, by this stage, mortality has cut away a large enough fraction of the population that those still alive to have children are becoming fewer and fewer.
Mathematically, the generation time in the Hylar is roughly one hundred years, due to the timing of their first and second children.
Mortality (not having to do with aging)
Despite being potentially physically immortal like the Sindar, the Hylar do not imagine that they will live forever. This is a dangerous world, and living in a dangerous world and doing the things that make life worthwhile inevitably involve the risk of death, and if you risk your life enough times, then, equally inevitably, death will happen.
In comparatively peaceful times, an average Hyla lives to be between two and three hundred years before dying. This is a half-life, not a life-span: this is the average age after which half of a cohort population will be dead. After another two hundred years, the surviving cohort will be half again reduced, and so on, assuming that comparative peace continues. During peacetime, the most common circumstances under which a Hyla may die is while adventuring. Most Hylar are more likely to adventure earlier in their lives rather than later, most often shortly after marriage, and as a result the largest fraction of mortality happens then, but Hylarin couples can and do travel at any age, and never truly stop, so the risk never truly disappears. It is in part for this reason that there are extremely few aged Hylar who, by playing it safe, have survived long enough to potentially die of old age. Usually, when killed adventuring, Hylarin couples die together, because they are traveling together.
Not all periods of Hylarin history have been peaceful. Death rates increase in periods of strife as one might expect them to. Individual Hylar regard their culture as being integral to who they are, and as a result everyone, whether trained as a warrior or not, is willing to fight to protect their civilizations. It is difficult to make blanket statements about mortality rates in warfare, as the Hylar use powerful ritual magic when they can to relieve or prevent death rates in war, but they are not always able to do so. Historically, the Hylar have won most of their wars, and when they win they usually do not suffer large numbers of casualties, especially civilian casualties, due in a large part to their effective and versatile use of magic. Those few wars the Hylar have lost, however, have nearly resulted in their extinction, with a substantial majority, of their population dying in a period as short as a score or less. These population bottlenecks also play a role in creating an effective upper age limit to the Hylar, as it is invariably the older generations that sacrifice themselves so that their children and their children's children can escape and survive their impending doom.
Aging
Hylar continue to age after reaching adulthood, and more rapidly than their Sindarin cousins, which they attribute to the New Elven Covenant (some of their distant cousins, especially the Noldor, have suggested that it may be do to a splash of Edain blood that made it into Hylarin ancestry in their prehistory). Like the Sindar and Noldor, Hylarin men can and do grow facial hair when they reach a certain age, which for the Hylar is roughly five-hundred years (it is several thousand for Sindar). Those few Hylar who have lived to be a thousand years old or more have often been described as appearing the way a human would in his middle thirties. No unequivocal "true" Hyla has ever been recorded of obviously dying of old age; there is the occasional member of the tribe who has died of old age at less than a thousand years, although this is credibly attributed to the presence of human blood in some Hylarin families, which manifests in other aspects of more rapid aging, less control over female ovulation, more susceptibility to diseases, and other things that commonly afflict humans but not elves.
Nonetheless, Hylar do appear to be mortal of body, just as their mythology says they should be, only that their natural lifespans greatly exceed the length of the lives they actually get to live. From their prospective, death in war or while adventuring is a perfectly natural way to die, and two hundred years is considered to be "a lifetime" in Hylarin culture - most young adults do not expect to live much longer than that.
Population dynamics
Although this varies depending on how peaceful the times, through most of their history, the population of the Hylar has been growing at a rate roughly doubling every two centuries, in stark contrast to the long-term trend of almost all elven societies which are characterized by a long, slow, population decline. These periods of prosperity and positive population growth have typically lasted between one thousand and fifteen hundred years, and are punctuated by sometimes very severe population bottlenecks. Following these bottlenecks, however, growth rates often spike as prosperity returns, before returning to the normal two-century doubling time.
Hylarin tribal leadership has always had a tendency to look to the future, and to acquire land such as will be able to hold their population hundreds of years hence as well as in the present. However, the adventurous tendencies of the Hylar as a people lead them to explore and settle new lands when they feel the urge, which is usually strongest when the lands they inhabit are beginning to become saturated. The Hylar have never had to deal with an internal overpopulation problem, as their explorers have never found any shortage of lightly inhabited land to which settlers could go as a new frontier (even Nidor was less well-settled than the rest of Damarin). However, the Hylar have always, when able, held on to a region of land that was to be their kingdom, subjected to their laws and dominated by their religion, in part to ensure the continuation of their cultural identity and to make sure that the magical Theme of their faith always has a refuge to dwell in and cannot be destroyed by other Themes. They do, however, share their land with other tribes and even other races provided that they do not interfere with their religion, however, as is the case with the halflings in Nidor (many of them turning to worship the Hylarin pantheon themselves). At present, Laramní has given no indication that she has any intention of expanding the borders of her people's domain beyond their current holdings of Nidor, although Nidorian merchants, both elf and halfling, certainly are expanding their influence up and down the Gentourin, which has gotten some kingdoms concerned about the possibility of future expansion.
Near extinctions
So far, the Hylarin population has crashed three times in their recorded history, with at least one more instance if Maialiwen is considered part of their history (although Maialiwen doubtless would have called herself a Sinda). These are:
-Mailiwen's band: Maialiwen fled east out of Beleriand after her people's kingdom was destroyed by Morgoth, the Great God of Evil in the Sindarin pantheon. It is somewhat of a mystery exactly where in Beleriand this kingdom was, although linguistic similarities and records of the Dwarves seem to suggest that it was in Ossirand. What is known is that Morgoth pursued Maialiwen and her people eastwards at least as far as Nen Hithoel on the river Anduin, where Maialiwen is said to have fallen. According to myth, there were barely a score of women in Maialiwen's band when they left Beleriand, although the men outnumbered them by 3:1. If true, this number had diminished further by the time Maialiwen reached Khazad-dűm, assuming Dwarven records are to be trusted: King Durin I welcomed Maialiwen and her tribe openly but kept his dealings with her very secret, so secret in fact that the only records that survive are sentry reports, which might be underestimates if Maialiwen's people were good at stealth, which legend holds them to have been. There is not enough time between Durin's records of when Maialiwen lived and when the first written censuses of Hylarin population were taken, however, for even liberal estimates of population increase to bring as few as twenty females up to the tens of thousands the censuses counted, indicating that either the myths overstate the severity of the destruction of Maialiwen's people, or else the pre-Hylarin population was bolstered by further immigration from other elven tribes.
-The Dark Prince: Shortly after the rise of the first great Hylarin civilization, an individual from a neighboring kingdom now titled the Dark Prince, in the words of the myths surrounding him, stole the Power of the Three. The Dark Prince then proceeded to wreak havoc upon Hylarin and other civilizations until he was defeated by an octet of heroes from various races, two of them being the first incarnations of the legendary Hylarin Hero and Heroine. It is not known for certain what the loss of life was a the civilized infrastructure was almost entirely destroyed, although it was certainly more than half of the Hylarin population. Moreover, the happiness of the Dark Prince's defeat was short-lived, as it left the civilization vulnerable to invasion by a series of warlords who conquered what had been Hylarin lands. This is the only time in their recorded history that the Hylar have existed as a tribe but not as a sovereign entity: they lived in the wilds of the forests and in mountain strongholds with a sister tribe believed to be an offshoot of the Hylar and living in those mountains still. Nonetheless, their religion survived, as the warlords did not grasp the significance of the difficult-to-get-to elemental temples the Hylar had built previously and the Dark Prince temporarily usurped, and so therefore made no effort to destroy them.
-The Dragon: Nearly fifteen hundred years after the rise of the Dark Prince, the second recorded incarnations of the Hero and Heroine defeated a sorcerer by the name of Vaelati who tried to undo the seal on the Dark Prince, and partially succeeded before the Hero and Heroine stopped him. Then he, in a battle of magic with the Heroine, uttered what is known as Vaelati's Prophecy, which called for a Dragon to destroy the Hylar. About three hundred years after that, the Dragon came, bringing with him an order of wizards who worshiped him, as well as the vast armies that a near god-like Dragon can conjure up (either literally or figuratively). These destroyed the great Hylarin civilization, which had a population of well over a million. In the end, the Dragon was sealed, along with the Dark Prince and Vaelati, and prophesied to be defeated by the Angel at a later time, but only some thousand, the real number is not known, but certainly less than five percent, of the Hylarin population survived. About ten-thousand of these refugees founded the Kingdom of the North a few years later. What has become of the other clans, or if they survived at all, is unknown at this time.
-The Fall of the Kingdom of the North: Hylarin population prior to the fall of the Kingdom of the North (generally having regarded as having begun with the appearance of the warlord Dakan, although population was still rising for part of that period) was about four hundred thousand, possibly more as some settlers had set off to the southeast. One hundred thousand went through the portal into Nidor.