Lecture VIII of the First Series of Müller’s Lectures on the Science of Language, “The Morphological Classification of Languages.” Here Müller arranges every language in the world into three developmental stages — a classification that was widely accepted in its day and remained an influential framework in linguistics textbooks well into the twentieth century. Reading the original text lets us see both how the scheme works and what assumptions are built into it.
Three stages
Müller’s classification focuses on how words are put together.
This second stage… I call the Terminational Stage. This stage is best represented by the Turanian family of speech… The third stage, in which roots coalesce so that neither the one nor the other retains its substantive independence, I call the Inflectional Stage. This stage is best represented by the Aryan and Semitic families.
In short: Stage One (isolating / radical) — one word equals one root, with grammatical relations shown purely by word order. Represented by Chinese. Stage Two (agglutinative / terminational) — a suffix attaches to a root, but the boundary between the two stays visible. Represented by the “Turanian family.” Stage Three (inflectional) — root and ending fuse together until the original shape is no longer visible. Represented by the Aryan and Semitic families. Read on their own, all three stages could sound like a purely structural description of how words happen to be built. Reading further into the lecture shows the story isn’t that simple.
The “Turanian family” — an enormous catch-all
What did Müller actually put inside the “Turanian family,” his example of Stage Two? Here is his own explanation:
The name Turanian is used in opposition to Aryan, and is applied to the nomadic races of Asia as opposed to the agricultural or Aryan races.
Worth noting here: the word “races” has quietly slipped into an explanation of a “language family.” This pairing of “language family” and “race” is not, as it turns out, an accident of phrasing. Müller’s “Turanian family” actually lumped together — as a single “family” — language groups with no demonstrated genetic relationship: Uralic (Finnish, Hungarian, and the rest), the Turkic languages, Mongolic, Tungusic, and even Tamil, Thai, and the Malayo-Polynesian languages. Modern linguistics recognizes no grounds for a single common ancestor across these groups, and the category “Turanian family” itself has been abandoned entirely.
The assumption behind the classification
There’s one more thing worth catching in this lecture. Müller presents his three stages not merely as “different mechanisms,” but as a developmental sequence running from isolating toward inflectional. The inflectional Aryan and Semitic families are placed at the “most advanced” stage, with an isolating language like Chinese effectively set at the starting line. This idea of ranking language types on a scale of superiority was widely accepted at the time, tangled up with the era’s evolutionary worldview — but it has no support whatsoever in modern linguistics. Isolating, agglutinative, and inflectional are each understood today as independent mechanisms, not points that can be compared on a scale of “advancement.” Modern Chinese still carries strong isolating characteristics, but almost no linguist today would call it “less developed” than English or Sanskrit because of that. A difference in type is simply a difference in mechanism, not a difference in evolutionary stage.
It’s also worth flagging that this morphological classification (isolating/agglutinative/inflectional) is, properly speaking, a different axis entirely from genealogical classification (the Aryan, Semitic, and Turanian families, say). Words being built the same way doesn’t mean two languages share a common ancestor. Müller himself was aware of this distinction to some degree — but by using the same name, “Aryan,” for both classifications, and placing it at the summit of progress in each, the two axes blur together easily in a reader’s mind. Why this classification is a problem, and how the word “Aryan” took on a life of its own, are subjects this feature takes on directly in a later article.
Summary
| Stage | Example | Mechanism |
|---|---|---|
| Stage 1: Isolating | Chinese | Root serves directly as word; word order shows grammar |
| Stage 2: Agglutinative | The “Turanian family” (a classification now abandoned) | A suffix attaches to a root, but the boundary remains |
| Stage 3: Inflectional | The Aryan and Semitic families | Root and ending fuse; the original shape disappears |
In a nutshell — Müller’s three-stage classification was, for its time, a genuinely groundbreaking way of organizing the differences in how languages are built. But that organizing scheme smuggled in talk of “race” alongside talk of “language family,” and tied itself to the idea of ranking language types on a scale of superiority. The precision of the classification and the danger of the assumption tucked inside it are two separate matters, and need to be judged separately. This feature reads both, without looking away from either.