Tag: steppe

More than 1 year of the steppe

Posted on by Razib Khan

Over at my Substack I’ve spent more than a year writing about the cultural and genetic impact of the Eurasian steppe. I’ve put out a large number of essays, so I want to post them here in case you missed one. In reverse order…

A Hun by any other name – On the genetic trail of Europe’s enduring bête noire:

The specter of these pitiless barbarians swooping in on horseback had haunted the ancients, their horror recorded in histories that filtered down to modern Europeans. In these classical texts, the Huns were the epitome of brutal and alien savages whose raison d’etre was total victory on the battlefield, punctuated by gluttonous orgies of flesh, food and drink. They were the embodiment of the European cultural imagination’s bête noire, the austere and erudite Roman aristocrat contrasting sharply with the brutish barbarian guzzling mare’s milk and gnawing on a hunk of raw meat while in the saddle.

The wolf at history’s door and Casting out the wolf in our midst are more anthropological and focused on the koryos and their role in shaping Eurasian history. I count these two as steppe-adjacent since they lack the chronological focus of the other pieces.

Dark Horse out of the Steppe Fishing the Sintashta, Scythians and Sarmatians out of obscurity.

Steppe 2.0: would you swipe right on a steppe brother? – The biological and social consequences of Yamnaya nomadism:

The Yamnaya-powered transformation of Europe and Asia more than 5,000 years ago was a social and economic revolution, with the explosion of nomadic pastoralism across the Eurasian steppe. Its downstream linguistic and cultural consequences are with us to this very day: billions of us speak Indo-European languages, and we preserve those ancestral religious beliefs both in the shared mythology of the West and in the living religious traditions of India. To premodern minds untouched by science, the rise of obscure tribes to world conquest would have been evidence of divine providence and fate. Theirs was a world of miracles, and the gods always chose favorites. By the 20th century, supernatural explanations had foundered on the shoals of scientific materialism. But unless you were a Marxist, history was a matter of narrow description of particular places and times, rather than general theoretical narratives that explained the arc and ebb of societies and cultures. It was one damn thing after another, with broader patterns attributed to the vague laws of probability.

Hungarians as the ghost of the Magyar confederacy: The cultural legacy of the Magyars far outweighs their genetic impact. Another steppe-adjacent piece, though this one focuses on one nation so it’s more appropriate.

Steppe 1.1a: A nowhere man’s world and Steppe 1.1b: culture vultures descend are two posts about the Corded Ware, Bell Beakers, and the steppe intrusion into Europe.

Steppe 1.0, Going Nomad: The early Indo-Europeans’ great leap forward:

Today 3.5 billion humans speak Indo-European languages, which dominate Eurasia from Spain to the Indian subcontinent. This is the legacy of the pastoralists who roamed the Pontic steppe north of the Black sea 5,000 years ago. They were the original Indo-Europeans. They pioneered the nomadic lifestyle, leaving behind hard toil at the plow and thankless foraging in cold Siberian forests. They chose instead to wander the open grasslands in search of fresh pastures for their herds. They were the first to unleash young warriors raised as roving nomads upon the world, predatory packs marching the breadth of a continent in a few centuries. We don’t know what they called themselves. We don’t know the names of those who led them. But their cultural innovations and the choices they made transformed our world and made us who we are today. These nameless people left no monuments or seminal texts. Instead, we live with their language, their gods and their genes.

Finally, the two introductory posts, Entering Steppelandia: pop. 7.7 billion: Why the steppe matters to me, and why it should matter to you and Library of the Steppe: They didn’t read, but you should.

The Empire of the Silk Road and the “Babel of Nations”

Posted on by Razib Khan

Empires of the Silk Road: A History of Central Eurasia from the Bronze Age to the Present is one of my favorite books because it combines erudition with trenchent and opinionated analysis. One of the arguments explicit within the author’s narrative is that the geographic parameters of Eurasian steppe created a set of societies and cultures which shaped world-history. In particular, implicit within Empires of the Silk Road is the thesis explicit in The Shape of Ancient Thought: Comparative Studies in Greek and Indian Philosophies, that Eurasian steppe pastoralists served as innovators and mediators of cultural motifs and practices across the Eurasian oikoumene. In Halford Mackinder’s formulation the “Rimland” and “Heartland” were symbiotic.

A new preprint, A dynamic 6,000-year genetic history of Eurasia’s Eastern Steppe, illuminates the genetic/demographic dynamics in an important region of the steppe:

The Eastern Eurasian Steppe was home to historic empires of nomadic pastoralists, including the Xiongnu and the Mongols. However, little is known about the region’s population history. Here we reveal its dynamic genetic history by analyzing new genome-wide data for 214 ancient individuals spanning 6,000 years. We identify a pastoralist expansion into Mongolia ca. 3000 BCE, and by the Late Bronze Age, Mongolian populations were biogeographically structured into three distinct groups, all practicing dairy pastoralism regardless of ancestry. The Xiongnu emerged from the mixing of these populations and those from surrounding regions. By comparison, the Mongols exhibit much higher Eastern Eurasian ancestry, resembling present-day Mongolic-speaking populations. Our results illuminate the complex interplay between genetic, sociopolitical, and cultural changes on the Eastern Steppe.

The Eastern Eurasian Steppe was home to historic empires of nomadic pastoralists, including the Xiongnu and the Mongols. However, little is known about the region’s population history. Here we reveal its dynamic genetic history by analyzing new genome-wide data for 214 ancient individuals spanning 6,000 years. We identify a pastoralist expansion into Mongolia ca. 3000 BCE, and by the Late Bronze Age, Mongolian populations were biogeographically structured into three distinct groups, all practicing dairy pastoralism regardless of ancestry. The Xiongnu emerged from the mixing of these populations and those from surrounding regions. By comparison, the Mongols exhibit much higher Eastern Eurasian ancestry, resembling present-day Mongolic-speaking populations. Our results illuminate the complex interplay between genetic, sociopolitical, and cultural changes on the Eastern Steppe.

The Xiongnu are important for two reasons. The less interesting reason is that they are posited to be the forerunners of the Huns. The more interesting reason is that many historians suggest that the emergence of organized steppe pastoralist polities on the northern and western flank of China drove the integration of the Han into a singular imperial system.

Though the historical dynamics are outside of the purview of this post, these results confirm that the advanced stages of the Xiongnu confederation were attractive to a diverse array of peoples, from steppe Iranians to Han.

click to enlarge

The time transect is probably best illustrated by this figure from the supplements:

Nomads, cosmopolitan predators, and peasants, xenophobic producers

Posted on by Razib Khan

Ten years ago when I read Peter Heather’s Empires and Barbarians, its thesis that the migrations and conquests of the post-Roman period were at least in part folk wanderings, where men, women, and children swarmed into the collapsing Empire en masse, was somewhat edgy. Today Heather’s model has to a large extent been validated. The recent paper on the Lombard migration, the discovery that the Lombards were indeed by and large genetically coherent as a transplanted German tribe in Pannonia and later northern Italy, confirms the older views which Heather attempted to resurrect. Additionally, the Lombards also seem to have been defined by a dominant group of elite male lineages.

Why is this even surprising? Because to a great extent, the ethnic and tribal character of the post-Roman power transfer between Late Antique elites and the newcomers was diminished and dismissed for decades. I can still remember the moment in 2010 when I was browsing books on Late Antiquity at Foyles in London and opened a page on a monograph devoted to the society of the Vandal kingdom in North Africa. The author explained that though the Vandals were defined by a particular set of cultural codes and mores, they were to a great extent an ad hoc group of mercenaries and refugees, whose ethnic identity emerged de novo on the post-Roman landscape.

In the next few years, we will probably get Vandal DNA from North Africa. I predict that they will be notably German (though with admixture, especially as time progresses). Additionally, I predict most of the males will be haplogroup R1b or I1. But the Vandal kingdom was actually one where there was a secondary group of barbarians: the Alans. It was Regnum Vandalorum et Alanorum. I predict that Alan males will be R1a. In particular, R1a1a-z93.

But this post is not about the post-Roman world. Rather, it’s about the Inner Asian forest steppe. The sea of grass, stretching from the Altai to the Carpathians. A new paper in Science adds more samples to the story of the Srubna, Cimmerians, Scythians, and Sarmatians. Ancient genomes suggest the eastern Pontic-Caspian steppe as the source of western Iron Age nomads. The abstract is weirdly nonspecific, though accurate:

For millennia, the Pontic-Caspian steppe was a connector between the Eurasian steppe and Europe. In this scene, multidirectional and sequential movements of different populations may have occurred, including those of the Eurasian steppe nomads. We sequenced 35 genomes (low to medium coverage) of Bronze Age individuals (Srubnaya-Alakulskaya) and Iron Age nomads (Cimmerians, Scythians, and Sarmatians) that represent four distinct cultural entities corresponding to the chronological sequence of cultural complexes in the region. Our results suggest that, despite genetic links among these peoples, no group can be considered a direct ancestor of the subsequent group. The nomadic populations were heterogeneous and carried genetic affinities with populations from several other regions including the Far East and the southern Urals. We found evidence of a stable shared genetic signature, making the eastern Pontic-Caspian steppe a likely source of western nomadic groups.

The German groups which invaded the Western Roman Empire were agropastoralists. That is, they were slash and burn farmers who raised livestock. Though they were mobile, they were not nomads of the open steppe. Man for man the Germans of Late Antiquity had more skills applicable to the military life than the Roman peasant. This explains in part their representation in the Roman armed forces in large numbers starting in the 3rd century. But the people of the steppe, pure nomads, were even more fearsome. Ask the Goths about the Huns.

Whole German tribes, like the Cimbri, might coordinate for a singular migration for new territory, but for the exclusive pastoralist, their whole existence was migration. Groups such as the Goths and Vandals might settle down, and become primary producers again, but pure pastoralists probably required some natural level of predation and extortion upon settled peoples to obtain a lifestyle beyond marginal subsistence. Which is to say that some of the characterizations of Late Antique barbarians as ad hoc configurations might apply more to steppe hordes.

There has been enough work on these populations over the past few years to admit that various groups have different genetic characteristics, indicative of a somewhat delimited breeding population. But, invariably there are outliers here and there, and indications of periodic reversals of migration and interactions with populations from other parts of Eurasia.

Earlier I noted that Heather seems to have been correct that the barbarian invasions of the Roman Empire were events that involved the migration of women and children, as well as men. The steppe was probably a bit different. Here are the Y and mtDNA results for males from these data that are new to this paper:

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Why Bronze Age steppe people replaced the farmers they conquered

Posted on by Razib Khan

One of the major revisions in my own mind about the demographic and historical processes of the Holocene in relation to humans has been the reality that large and dense agglomerations of agriculturalists could be marginalized by later peoples, to the point of having a smaller genetic footprint in the future than anyone might have imagined. If you had asked me ten years ago I just wouldn’t have believed that the first farmers of Europe or South Asia wouldn’t account for the vast majority of the ancestry of the contemporary populations of the region. By “first farmers” I don’t even mean migrants. At that point, I had assumed a primarily Pleistocene indigenous hypothesis for the origin of Europeans and South Asians, with farming diffusing through a mixture of a few migrants along a demographic wave of advance.

That’s not what it looks like according to ancient DNA. In Northern Europe, it seems that around half or more of the ancestry is due to the incursions of a pastoralist steppe population during the Bronze Age. In Southern Europe and South Asia, the fraction is closer to 10-25%. But even in the latter case, the fraction of steppe ancestry is far higher than I had expected.

I had assumed that the steppe migrants would contribute 1-5% of the ancestry of Europeans and South Asians and that the spread of Indo-European languages was a matter of elite transmission and emulation. Think the Hungarians, for example, as an example of what had assumed.

So what explains what really happened?

During the Mongol conquest of Northern China Genghis Khan reputedly wanted to turn the land that had been the heart of the Middle Kingdom into pasture, first by exterminating the whole population. Part of the motive was to punish the Chinese for resisting his armies, and part of it was to increase his wealth. One of his advisors, Yelu Chucai, a functionary from the Khitai people, dissuaded him from this path through appealing to his selfishness. Chinese peasants taxed on their surplus would enrich Genghis Khan far more than enlarging his herds. Rather than focus on primary production, Genghis Khan could sit atop a more complex economic system and extract rents.

Most of you at this point can see the general framework then. For thousands of years, pastoralist people of the Inner Asian steppe and forest would extract rents out of the oikoumene by threatening them with force. The reason the East Roman Empire did not face the Hunnic onslaught during the lifetime of Attila is that they paid the horde tribute. Imperial China did the same during some periods. In other instances, civilized states found in the barbarians of the steppe useful confederates. The Tang dynasty did not collapse during the 750s because of the intervention of the Uyghurs, who suppressed the rebellion of An Lushan. In 9th century Baghdad the rise of the Turks was enabled by their usefulness in court politics and distance from any given faction.

The rise of the “gunpowder empires” during the 16th century and the eventual closing of the Inner Asian frontier with the crushing of the last embers of the Oirat confederacy between the Russian and Chinese Empires in the 18th century marked the end of thousands of years of interaction between the farmland and pasture.

But this makes us ask: when did this dynamic begin? I don’t think it was primordial. It was invented and developed over time through trial and error. I believe that the initial instinct of pastoralists was to turn farmland into pasture for his herds. This was Genghis Khan’s instinct. The rude barbarian that he was he had not grown up in the extortive system which more civilized barbarians, such as the Khitai, had been habituated to.

In these situations where pastoralists expropriated the land, there wouldn’t have been an opportunity for the farmer to raise a family. Barbarian warlords throughout history have aspired to be rich by plundering from the civilized the peoples…but would the earliest generations have understood the complexity of the institutions that they would have to extract rents out of if there wasn’t a precedent?

Instead of conventional historical dynamics of predatory elites and static peasantry, a better way to understand what occurred with the incursion of steppe pastoralists during the Bronze Age might be a simple ecological model of intra-specific competition. In a pre-state society defined by clan and tribal ties, steppe elites may have seen the farmers who were earlier residents in the territories which they were expanding into as competitors rather than resources from which a life of leisure might be obtained. In other words, instead of conquest, the dynamic was of animal competition.

Of course, pre-modern societies did not have totalitarian states and deadly technology. Rapid organized genocide in a way that we would understand was unlikely to have happened. Rather, in a world on the Malthusian margin, a few generations of deprivation may have resulted in the rapid demographic extinction of whole cultures. You don’t need to kill them if they starve because they were driven off their land.

In fact, we have some precedent of this historically. The Spaniards were intent on extracting rents out of the native peoples of the New World and living a life of leisure, but in many areas disease and exploitation resulted in demographic collapse. Imagine a conquest elite as vicious as the Spaniards, but without thousands of years of precedent that conquered peoples were more useful alive rather than dead. 

Addendum: The fraction of haplogroup M, which is probably derived from Pleistocene South Asians, is greater than 50% in places like Sindh. This indicates that the steppe migrations were strongly male biased in the initial generations.