Today's Reading
Chapter 134: The CF Split and the Unsplit C
While D was burying itself under the ash
Of Toba, or finding refuge in Japan,
The sister clade CF was going through the crash
And continuation of its own slow plan.
CF had split from DE early in the wandering—
Within a few thousand years of the crossing, two
Major sub-branches of CT were pondering
Separate trajectories, and one was called the CF crew.
Then CF itself split. Into C and F.
F is the one that stays in the main story. F
Would spawn the GHIJK megabranch—the whole of
The lineages that would become, in time, every G
And H and I and J and K (and L, M, N, O, P, Q, R, S, T)
Of the human family tree. F is the generous
Trunk from which ninety percent of non-African
Men descend. Everything downstream. The ocean and the rain.
F will be covered in the coming chapters. The stain
And signature of its descendants will take up
The better part of the next eight or nine chapters. The cup
Of F is deep. But first, C.
Haplogroup C.
Not the deepest. Not the first to split. Not the widest
Of the modern distributions. But perhaps the strangest,
The most geographically bewildering, the slightest
And most puzzling of the major lineages. The largest
Gap in the human migration story belongs to C.
Because C is in two places. Two. Not scattered.
Two. Not a handful of refugia, as D was battered
Into. But two populations, separated by
A distance greater than any other haplogroup's fly
And range:
Indigenous Australia.
And the Central Asian steppe.
Australia was settled, in the Gaiad's reading,
Approximately fifty thousand years ago. The feeding
Migration came from Indonesia, across the Wallace
Line, which was, at the time, a much narrower palace
Of open water than today. Sea levels were lower. The islands
Of Sundaland and Sahul formed a near-continuous land
Mass across what is now deep ocean. The bands
That crossed into Australia were among the earliest
Post-CT migrants. They carried C, and C was the curliest
And tangled-most of the haplogroups they carried. They arrived.
They settled. They spread across the entire continent, and they thrived
There for the next fifty thousand years. Fifty.
Thousand. Years. The longest continuous human occupation
Of any single continent on earth. The Aboriginal
Peoples of Australia are, by the measure of the operation
Of their unbroken presence on the land, the oldest
Culture on earth. Fifty thousand years of the boldest
And most patient continuous adaptation to a single
Continent. Fifty thousand years of songlines and the single-
Minded knowledge of the water-holes, the migrations
Of the kangaroo, the flowering of the banksia, the stations
Of the fire-stick farming, the languages, the laws,
The dreamings—fifty thousand years of patient causes
And effects on the land and on the body and on the mind.
And approximately sixty percent of Aboriginal Australian
Men carry C. C is the dominant patrilineal sign
Of the continent's indigenous population. The alien
And later European arrivals brought their own haplogroups.
But the C of Australia—the old C, the one that scoops
And gathers up the oldest story on earth—is the marker
Of an unbroken fifty-thousand-year continuity. The starker
Fact is that this same lineage—the same C, not a closely-
Related cousin, but the same haplogroup, precisely—
Is also the dominant lineage of the Central Asian steppe.
The Mongols. The Kazakhs. The Tuvans. The Buryats. The swept
And windy grasslands of the heartland of Eurasia,
Where the mounted nomads would build, in much later ages, the empires
That would change the course of history—from the Xiongnu to Genghis Khan's pyres
And conquests and the successor Golden Hordes—carry, at
High frequencies, C. The same haplogroup that sat
On the Australian continent for fifty thousand years
Is the one whose later descendants raise the spears
Of the Mongol cavalry over the high grasses of the steppe.
One lineage. Two places. Two completely distinct epic
And separate cultural trajectories. The oldest continuous
Culture on earth. And the greatest land-empire builders. The sinuous
And strange fact of a single patrilineal marker
That spans the two. How did this happen? What is the starker
Mechanism behind the non-divergence? Why has C
Not split, in the way that every other major haplogroup freely
And genetically has, into distinct regional sub-clades
That we name and number and treat as separate cascades?
The scientific answer is that C does have internal sub-clades—
C1, C2, and so on—and that the Australian C
Is largely C1, while the steppe C is largely C2. There are reads
Of the data that distinguish them. But at the level
Of the haplogroup name, at the level where the gavel
Of nomenclature comes down, they are still C. They have
Not been split into two separate haplogroups. The salve
Of the distinct sub-clade designation does not quite close
The puzzle of how closely related they are. The knows
And does-not-knows of the deep genetic record here
Produces something strange: a single name for two careers
That are as divergent as any two can be.
The Gaiad does not resolve the puzzle. The Gaiad lets the mystery
Of C stand. The chapter is not about a causal explanation—
Not a catastrophe, as in D. Not a refugium-driven preservation.
C has a different story, and the story is: we do not know.
What we know is that two peoples, fifty thousand years apart in the flow
Of their development on their respective continents, still carry
The same mark in their Y. The oldest Aborigines, whose tarry
And unbroken knowledge of their country goes back further
Than any other human group's unbroken relationship to a further
Place, and the Mongol horsemen of the grasslands, whose empire
Once stretched from the Sea of Japan to the Black Sea's fire
And cold waters. Both C. Both carrying some ancient
Signature of a common patrilineal ancestor, whose patient
Descendants went, some of them, south, and others, north, and kept
The marker intact across fifty thousand years, and have crept
Into the chromosomes of two of the most distinctive
Cultures on earth without either culture being distinctive
Of the other, or remembering the other, or having any
Awareness at all that the other exists. The many
And disconnected branches of humanity share things
That no living member of any culture remembers. The strings
Of deep ancestry are quieter than any language.
The Arnhem Land man, singing the songline of his range,
Does not know about Mongolia. The Mongolian shepherd
Does not know about the Dreaming. But the shepherd
And the singer share an ancestor. Somewhere, deep in the past,
A common father, whose children walked in opposite directions, the cast
And shadow of whose Y is now held by the continent of Australia
And the grasslands of central Asia. One man. Two continents. The failure
Of the usual divergence to produce two separate names.
C is the unsplit. C is the haplogroup that claims
Two of the most distinctive human trajectories without being split
Into two names. C is the exception to the splitting rules. The fit
And fitness of its lineage, its insistence on staying
C across the millennia of its carriers' laying
Of tracks across two continents, is the strangeness of this chapter.
There is no catastrophe here. No Toba. No fracture
And refugium. Just a migration that went two ways, and a marker
That didn't speciate, or didn't speciate as much as the starker
And more divergent other haplogroups did. The steppe and the desert
Continent are held together by the invisible insert
Of a shared patrilineal signature.
And then the steppe
Story goes its own way. The horses are domesticated. The step
And gait of the mounted nomad emerges. The empires
Of the steppe rise and fall and rise again, and the wires
And tensions of the grassland-versus-settled-civilization
Conflict that will define so much of Eurasian history's station
Come into being. The Mongol horseman of the Genghis Khan era
Is still carrying, in most cases, haplogroup C. The aura
Of the patrilineal continuity stretches from the earliest
Migrants into central Asia to the successor hordes of the nearest
Modern descendants in Mongolia and Kazakhstan today.
And the Australian story, meanwhile, goes its own way.
The Aboriginal peoples develop the most complex and sophisticated
Non-agricultural society on earth. They become the dedicated
Stewards of a continent. They never develop writing. They never
Build cities. They never, in the sense of the builders of the clever
And fortified civilizations of Mesopotamia or China or Mesoamerica,
"Civilize." But they produce something else, something the hysteric
And superficial European colonizers of the eighteenth and nineteenth
Centuries could not see: a way of being human that had deep, profound
Achievement in its own register. Fifty thousand years of song.
Fifty thousand years of painting. Fifty thousand years of the long
And patient reading of the land. The Gaiad will not rank them
Below the city-builders. The Gaiad honors them as them.
And the same Y signature, meanwhile, is being carried
By the Mongol horseman whose empire will be vast and varied
And who will not know that a cousin, deep in the south,
Is holding the same mark in his body, the same mouth
Of the same chromosomal inheritance. The two peoples
Will never meet. Will never know of each other. The steeples
And songs of each will be entirely its own.
But in their blood, they are kin.
And the chapter ends there.
With the strange and unresolved fact of the shared bone
Of inheritance, the unsplit C, and the fare
And content of two completely different cultural legacies,
Bound in silence, through the body, to each other.
The haplogroup refuses to speciate. It insists on unity
Where culture has produced total divergence. It is the mother
Of two very different children, who never meet, and who
Would not recognize each other if they did. And the clue
That they are related is carried only in the chromosomal
Ink of their bodies, unread and unreadable by the total
Of their own languages and mythologies.
C is the unsplit haplogroup. C is the long
And patient one, the mother of the apologies
That evolution never offered for failing to split
The lineage when the distance demanded it. It
Is what it is. And the Australian and the Mongol
Are, against all reasonable expectation, still one gongoll
And chime of the same ancestral sound. Their common
Father watches them through the silence of the chromosome.
And F, meanwhile, in the next chapter, begins
The proliferation of every other haplogroup's twins.