Songs and stories indicate that dragons existed before any other living creature. The Old Hardic kennings or euphemisms for the word dragon are Firstborn, Eldest, Elder Children. (The words for the firstborn child of a family in Osskilian, akhad, and in Kargish, gadda, are derived from the word haath, "dragon," in the Old Speech.)

Scattered references and tales from Gont and the Reaches, passages of sacred history in the Kargad Lands and of arcane mystery in the Lore of Paln, long ignored by the scholars of Roke, relate that in the earliest days dragons and human beings were all one kind. Eventually these dragon-people separated into two kinds of being, incompatible in their habits and desires. Perhaps a long geographical separation caused a gradual natural divergence, a differentiation of species. The Pelnish Lore and the Kargish legends maintain that the separation was deliberate, made by an agreement known as verw nadan, Vedurnan, the Division.

These legends are best preserved in Hur-at-Hur, the easternmost of the Kargad Lands, where dragons have degenerated into animals without high intelligence. Yet it is in Hur-at-Hur that people keep the most vivid conviction of the original kinship of human and dragon kind. And with these tales of ancient times come stories of recent days about dragons who take human form, humans who take dragon form, beings who are in fact both human and dragon.

However the Division came about, from the beginning of historical time human beings have lived in the main Archipelago and the Kargad Lands east of it, while the dragons kept to the westernmost isles—and beyond. People have puzzled at their choosing the empty sea for their domain, since dragons are "creatures of wind and fire," who drown if plunged under the sea. But they have no need to touch down either on water or on earth; they live on the wing, aloft in air, sunlight, starlight. The only use a dragon has for the ground is some kind of rocky place where it can lay its eggs and rear the drakelets. The small, barren islets of the farthest West Reach suffice for this.

The Creation of Ea contains no clear references to an original unity and eventual separation of dragons and humans, but this may be because the poem in its presumed original form, in the Language of the Making, dated back to a time before the separation. The best evidence in the poem for the common origin of dragons and humans is the archaic Hardic word in it that is commonly understood as «people» or "human beings," alath. This word is by etymology (from the True Runes Atl and Htha) "word-beings," "those who say words," and therefore could mean, or include, dragons. Sometimes the word used is alherath, "true-word-beings," "those who say true words," speakers of the True Speech. This could mean human wizards, or dragons, or both. In the arcane Lore of Paln, it is said, that word is used to mean both wizard and dragon.

Dragons are born knowing the True Speech, or, as Ged put it, "the dragon and the speech of the dragon are one." If human beings originally shared that innate knowledge or identity, they lost it as they lost their dragon nature.

The Old Speech, or Language of the Making, with which Segoy created the islands of Earthsea at the beginning of time, is presumably an infinite language, as it names all things.

This language is innate to dragons, not to humans, as said above. There are exceptions. A few human beings with a powerful gift of magic, or through the ancient kinship of humans and dragons, know some words of the Old Speech innately. But the very great majority of people must learn the Old Speech. Hardic practitioners of the art magic learn it from their teachers. Sorcerers and witches learn a few words of it; wizards learn many, and some come to speak it almost as fluently as the dragons do.

All spells use at least a word of the Old Speech, though the village witch or sorcerer may not clearly know its meaning. Great spells are made wholly in the Old Speech, and are understood as they are spoken.

The Hardic language of the Archipelago, the Osskili tongue of Osskil, and the Kargish tongue, are all remote descendants of the Old Speech. None of these languages serves for the making of spells of magic.

The people of the Archipelago speak Hardic. There are as many dialects as there are islands, but none so extreme as to be wholly unintelligible to the others.

Osskili, spoken in Osskil and two islands northwest of it, has more affinities to Kargish than to Hardic. Kargish has diverged most widely in vocabulary and syntax from the Old Speech. Most of its speakers (like most Hardic speakers) do not realise that their languages have a common ancestry. Archipelagan scholars are aware of it, but most Kargs would deny it, since they have confused Hardic with the Old Speech, in which spells are cast, and thus fear and despise all Archipelagan speech as malevolent sorcery.

Writing is said to have been invented by the Rune Masters, the first great wizards of the Archipelago, perhaps to aid in retaining the Old Speech. The dragons have no writing.

There are two entirely different kinds of writing in Earthsea: the True Runes and runic writing.

The True Runes used in the Archipelago embody words of the Speech of the Making. True Runes are not symbols only, but reifactors: they can be used to bring a thing or condition into being or bring about an event. To write such a rune is to act. The power of the action varies with the circumstances. Most of the True Runes are found only in ancient texts and lore-books, and used only by wizards trained in their use; but a good many of them, such as the symbol written on the door lintel to protect a house from fire, are in common use, familiar to unlearned people.

Long after the invention of the True Runes, a related but nonmagical runic writing was developed for the Hardic language. This writing does not affect reality any more than any writing does; that is to say, indirectly, but considerably.

It is said that Segoy first wrote the True Runes in fire on the wind, so that they are coeval with the Language of the Making. But this may not be so, since the dragons do not use them, and if they recognise them, do not admit it.

Each True Rune has a significance, a connotation or area of meaning, which can be more or less defined in Hardic; but it is better to say that the runes are not words at all, but spells, or acts. Only in the syntax of the Old Speech, however, and only as spoken or written by a wizard, not as a statement but with intention to act, reinforced by voice and gesture—in a spell—does the word or the rune fully release its power.

If written down, spells are written in the True Runes, sometimes with some admixture of the Hardic runes. To write in the True Runes, as to speak the Old Speech, is to guarantee the truth of what one says—if one is human. Human beings cannot lie in that language. Dragons can; or so the dragons say; and if they are lying, does that not prove that what they say is true?

The spoken name of a True Rune may be the word it signifies in the Old Speech, or it may be one of the connotations of the rune translated into Hardic. The names of commonly used runes such as Pirr (used to protect from fire, wind, and madness), Sifl ("speed well"), Simn ("work well") are used without ceremony by ordinary people speaking Hardic; but practitioners of magic speak even such well-known, often used names with caution, since they are in fact words in the Old Speech, and may influence events in unintended or unexpected ways.

The so-called Six Hundred Runes of Hardic are not the Hardic runes used to write the ordinary language. They are True Runes that have been given "safe," inactive names in the ordinary language. Their true names in the Old Speech must be memorised in silence. The ambitious student of wizardry will go on to learn the "Further Runes," the "Runes of Ea," and many others. If the Old Speech is endless, so are the runes.