The Indus Valley civilization (IVC) has got to be the most obscure of the big six. If you challenged the average person to list the world’s first six relatively independent civilizations, they’d probably guess “Egypt, Mesopotamia, Greece, Rome, China, and, um, Africa? Israel?” Eventually they might hit on “Incas and Aztecs/Mayans,” which are geographically about right. But few would guess that the Indus Valley, located in modern-day Pakistan and India, was one of the world’s first three big civilizations, predating the Chinese by almost a millennium and a half.
This is partially explained by random luck: Egypt and Mesopotamia both feature in the Bible and are relatively easy to get to from Europe, (Egypt moreso than Mesopotamia,) and early archaeology appears to have been driven largely by a desire to uncover the truth behind the Homeric epics and the Bible. (And I have a much easier time accessing archaeological materials written in English.)
China is an enormous, famous country that has the resources to promote its own heritage, and the cultures of the Americas are famous because they’re nearby and because they’re included in the history of the conquering of the Americas, which we learned in school.
Pakistan, by contrast, is hard to get to, not part of the American colonial narrative, doesn’t feature in the Bible, and doesn’t have China’s fame and resources. On top of that, if the Wikipedia talk page on the Indus Valley Culture is correct, Pakistan may not be all that interested in the IVC due to it not being Muslim.
India, by contrast, proudly claims the IVC as part of its history–the IVC page is “part of a series on the history of India,” but not “part of a series on the history of Pakistan.”
Additionally, the IVC, while it left behind plenty of cities, buildings, etc., did not build the kind of monumental structures that draw tourists, like the Great Pyramids of Egypt or Chichen Itza, Mexico. More than a thousand IVC cities or settlements have been discovered, many with granaries, public baths, hydraulic systems, and obvious urban planning (their cities are laid out in grids with excellent-for-the-time sewer systems,) but almostno enormous temples, castles, pyramids, or other obviously ceremonial sites.
The Egyptians helpfully covered their temples in hieroglyphics and left behind so many written records that we have things like Egyptian math textbooks containing fictional, satirical stories about how to not be a scribe. From Mesopotamia we have the Epic of Gilgamesh.
But from the IVC we have only short inscriptions–if they are inscriptions at all–most on small seals. Most of these inscriptions are only a few characters long, greatly hindering our ability to decipher them. We don’t know what they mean, or even if they are a written language at all.
What we do know:
The IVC (aka the Harappan, after one of their chief cities,) emerged around 3,300 BC in what is now Pakistan and India. It lasted for about 2,000 years; then essentially disappeared, its people either merging into other populations or migrating away. Over a thousand Harappan cities or settlements have been identified, most of them in Pakistan but a few in Afghanistan and a contested number in India. (Since India is eager to claim the IVC as its own, there are allegations that Indian archaeologists are inflating the number of significant sites on their side of the border.)
(Afghanistan, of course, does not have the resources for archaeology, but it is also really dry, so there probably weren’t that many sites there to start with.)
The IVC likely descended from the Mehrgarh culture (see map). Mehrgarh was a small farming settlement founded around 6,500 BC:
The earliest farming in the area was developed by semi-nomadic people using plants such as wheat and barley and animals such as sheep, goats and cattle. The settlement was established with simple mud buildings and most of them had four internal subdivisions. Numerous burials have been found, many with elaborate goods such as baskets, stone and bone tools, beads, bangles, pendants and occasionally animal sacrifices, with more goods left with burials of males. Ornaments of sea shell, limestone, turquoise, lapis lazuli and sandstone have been found, along with simple figurines of women and animals. Sea shells from far sea shore and lapis lazuli found as far away as present-day Badakshan, Afghanistan shows good contact with those areas. …
In April 2006, it was announced in the scientific journal Nature that the oldest (and first early Neolithic) evidence for the drilling of human teeth in vivo (i.e. in a living person) was found in Mehrgarh. According to the authors, their discoveries point to a tradition of proto-dentistry in the early farming cultures of that region. “Here we describe eleven drilled molar crowns from nine adults discovered in a Neolithic graveyard in Pakistan that dates from 7,500 to 9,000 years ago.”
[Harappa] is believed to have had as many as 23,500 residents and occupied about 150 hectares (370 acres) with clay sculptured houses
… Harappan society was not entirely peaceful, with the human skeletal remains demonstrating some of the highest rates of injury (15.5%) found in South Asian prehistory.[11] Paleopathological analysis demonstrated that leprosy and tuberculosis were present at Harappa, with the highest prevalence of both disease and trauma present in the skeletons from Area G (an ossuary located south-east of the city walls).[12] Furthermore, rates of cranio-facial trauma and infection increased through time, demonstrating that the civilization collapsed amid illness and injury.
Genetically, Harappan skeletons belong to haplogroup L-M20, which today is found primarily in Pakistan and the west coast of India:
In Pakistan, it has highest frequency in Baluchistan.[2] In India, it has higher frequency among Dravidian castes, but is somewhat rarer in Indo-Aryan castes.[3] They make a case for an indigenous origin of L-M76 in India, by arguing that the spatial distributions of both L-M76 HG frequency and associated microsatellite variance show a pattern of spread emanating from southern India. By linking haplogroup L-M76 to the Dravidian speakers, they simultaneously argue for an Indian origin of Dravidian languages (Sengupta 2006).
There is apparently some controversy over whether the invading Indo-Europeans (who brought the Sanskrit language to India) drove the Harappans out of Pakistan and into India. India’s a big place that can absorb a lot of people, but it looks to me like many of the Harappans stayed put.
The Citadel – a mud-brick mound around 12 metres (39 ft) high – is known to have supported public baths, a large residential structure designed to house about 5,000 citizens, and two large assembly halls. The city had a central marketplace, with a large central well. Individual households or groups of households obtained their water from smaller wells. … Some houses … include rooms that appear to have been set aside for bathing, and one building had an underground furnace (known as a hypocaust), possibly for heated bathing. Most houses had inner courtyards, with doors that opened onto side-lanes. Some buildings had two stories.[citation needed]
The Great Bath of Mohenjo-Daro
In 1950, Sir Mortimer Wheeler identified one large building in Mohenjo-daro as a “Great Granary”. Certain wall-divisions in its massive wooden superstructure appeared to be grain storage-bays, complete with air-ducts to dry the grain. … However, Jonathan Mark Kenoyer noted the complete lack of evidence for grain at the “granary”, which, he argued, might therefore be better termed a “Great Hall” of uncertain function.[13] Close to the “Great Granary” is a large and elaborate public bath, sometimes called the Great Bath. From a colonnaded courtyard, steps lead down to the brick-built pool, which was waterproofed by a lining of bitumen. The pool measures 12 metres (39 ft) long, 7 metres (23 ft) wide and 2.4 metres (7.9 ft) deep. … Other large buildings include a “Pillared Hall”, thought to be an assembly hall of some kind, and the so-called “College Hall”, a complex of buildings comprising 78 rooms, thought to have been a priestly residence.[citation needed]
Mohenjo-daro had no series of city walls, but was fortified with guard towers to the west of the main settlement, and defensive fortifications to the south. … Mohenjo-daro was successively destroyed and rebuilt at least seven times. Each time, the new cities were built directly on top of the old ones. Flooding by the Indus is thought to have been the cause of destruction.[citation needed]
Why is it all “citation needed”?
Dancing Girl of Mohenjo Daro
A bronze statuette dubbed the “Dancing Girl”, 10.5 centimetres (4.1 in) high[20] and about 4,500 years old, was found in ‘HR area’ of Mohenjo-daro in 1926.[20] … The archaeologist Gregory Possehl said of the statuette, “We may not be certain that she was a dancer, but she was good at what she did and she knew it”. The statue led to two important discoveries about the civilization: first, that they knew metal blending, casting and other sophisticated methods of working with ore, and secondly that entertainment, especially dance, was part of the culture.[20]
I think “dancer” is an overly-poetic interpretation of the statue, but it is a striking work.
“Priest-King” statue, Mohenjo-daro
In 1927, this soapstone figurine, dubbed “The Priest-King,” (though we don’t know if the Mohenjo-daroians had priests or kings,) was found in a wall-niche in a “building with unusually ornamental brickwork.”
The sculpture is 17.5 centimetres (6.9 in) tall and depicts a bearded man with a fillet around his head, an armband, and a cloak decorated with trefoil patterns that were originally filled with red pigment. … Two holes beneath the highly stylized ears suggest that a necklace or other head ornament was attached to the sculpture. … Drill holes in the center of each circle indicate they were made with a specialized drill and then touched up with a chisel. The eyes are deeply incised and may have held inlay. …[22]
One of the unique features[14] of Dholavira is the sophisticated water conservation system[15] of channels and reservoirs, the earliest found anywhere in the world,[16] built completely of stone. The city had massive reservoirs, three of which are exposed.[17] They were used for storing fresh water brought by rains[15] or to store water diverted from two nearby rivulets.[18] This clearly came in response to the desert climate and conditions of Kutch, where several years may pass without rainfall. A seasonal stream which runs in a north-south direction near the site was dammed at several points to collect water. …
A huge circular structure on the site is believed to be a grave or memorial,[15] although it contained no skeletons or other human remains. The structure consists of ten radial mud-brick walls built in the shape of a spoked wheel.[15]…
These hemispherical structures bear similarity to early Buddhist stupas.[5] The Archaeological Survey of India, which conducted the excavation, opines that “the kind of design that is of spoked wheel and unspoked wheel also remind one of the Sararata-chakra-citi and sapradhi-rata-chakra-citi mentioned in the Satapatha Brahmana and Sulba-sutras“.[5] …
One of the most significant discoveries at Dholavira was made in one of the side rooms of the northern gateway of the city, and is generally known as the Dholavira Signboard. The Harappans had arranged and set pieces of the mineral gypsum to form ten large symbols or letters on a big wooden board[27] … Each sign is about 37 cm (15 in) high and the board on which letters were inscribed was about 3 m (9.8 ft) long.[28] The inscription is one of the longest in the Indus script, with one symbol appearing four times, and this and its large size and public nature make it a key piece of evidence cited by scholars arguing that the Indus script represents full literacy. A four sign inscription with big size letters on a sand stone is also found at this site, considered first of such inscription on sand stone at any of Harappan sites.[1]
Indus Valley civilization was mainly an urban culture sustained by surplus agricultural production and commerce, the latter including trade with Sumer in southern Mesopotamia. Both Mohenjo-Daro and Harappa are generally characterized as having “differentiated living quarters, flat-roofed brick houses, and fortified administrative or religious centers.”[8] …
Distinctive seals were used, among other applications, perhaps for identification of property and shipment of goods. Although copper and bronze were in use, iron was not yet employed. “Cotton was woven and dyed for clothing; wheat, rice, and a variety of vegetables and fruits were cultivated; and a number of animals, including the humped bull, were domesticated,”[8] as well as “fowl for fighting“.[9] Wheel-made pottery—some of it adorned with animal and geometric motifs—has been found in profusion at all the major Indus sites. A centralized administration for each city, though not the whole civilization, has been inferred from the revealed cultural uniformity; however, it remains uncertain whether authority lay with a commercial oligarchy. Harappans had many trade routes along the Indus River that went as far as the Persian Gulf, Mesopotamia, and Egypt. Some of the most valuable things traded were carnelian and lapis lazuli.[10]
Obviously we don’t know much at all about IVC mathematics, but:
Excavations … have uncovered evidence of the use of “practical mathematics”. The people of the IVC manufactured bricks whose dimensions were in the proportion 4:2:1, considered favourable for the stability of a brick structure. They used a standardised system of weights based on the ratios: 1/20, 1/10, 1/5, 1/2, 1, 2, 5, 10, 20, 50, 100, 200, and 500, with the unit weight equaling approximately 28 grams … They mass-produced weights in regular geometrical shapes, which included hexahedra, barrels, cones, and cylinders, thereby demonstrating knowledge of basic geometry.[18]
The inhabitants of Indus civilisation also tried to standardise measurement of length to a high degree of accuracy. They designed a ruler—the Mohenjo-daro ruler—whose unit of length (approximately 1.32 inches or 3.4 centimetres) was divided into ten equal parts. Bricks manufactured in ancient Mohenjo-daro often had dimensions that were integral multiples of this unit of length.[19][20]
Among other things, they contain the world’s earliest known system of flush toilets. These existed in many homes, and were connected to a common sewerage pipe. Most houses also had private wells. City walls functioned as a barrier against floods.
The urban areas of the Indus Valley civilization provided public and private baths, sewage was disposed through underground drains built with precisely laid bricks, and a sophisticated water management system with numerous reservoirs was established. In the drainage systems, drains from houses were connected to wider public drains.[1]
Lothal, a port city located in India, contains the world’s earliest known docks, and may have been a Harappan colony, far from the heartland of the IVC:
Before the arrival of Harappan people (c. 3000 BCE), Lothal was a small village next to the river providing access to the mainland from the Gulf of Khambhat. The indigenous people maintained a prosperous economy, attested by the discovery of copper objects, beads and semi-precious stones. … Harappans were attracted to Lothal for its sheltered harbour, rich cotton and rice-growing environment and bead-making industry. The beads and gems of Lothal were in great demand in the west. The settlers lived peacefully with the Red Ware people, who adopted their lifestyle, evidenced from the flourishing trade and changing working techniques. Harappans began producing the indigenous ceramic goods, adopting the manner from the natives.[8]
And, typical of the IVC:
The uniform organisation of the town and its institutions give evidence that the Harappans were a very disciplined people.[12] … Municipal administration was strict – the width of most streets remained the same over a long time, and no encroached structures were built. Householders possessed a sump, or collection chamber to deposit solid waste in order to prevent the clogging of city drains. Drains, manholes and cesspools kept the city clean and deposited the waste in the river, which was washed out during high tide. A new provincial style of Harappan art and painting was pioneered. The new approaches included realistic portrayals of animals in their natural surroundings. Metalware, gold and jewellery and tastefully decorated ornaments attest to the culture and prosperity of the people of Lothal.
Most of their equipment: metal tools, weights, measures, seals, earthenware and ornaments were of the uniform standard and quality found across the Indus civilization. Lothal was a major trade centre, importing en masse raw materials like copper, chert and semi-precious stones from Mohenjo-daro and Harappa, and mass distributing to inner villages and towns. It also produced large quantities of bronze celts, fish-hooks, chisels, spears and ornaments. Lothal exported its beads, gemstones, ivory and shells. The stone blade industry catered to domestic needs—fine chert was imported from the Larkana valley or from Bijapur in modern Karnataka. Bhagatrav supplied semi-precious stones while chank shell came from Dholavira and Bet Dwarka. An intensive trade network gave the inhabitants great prosperity. The network stretched across the frontiers to Egypt, Bahrain and Sumer.[11] One of the evidence of trade in Lothal is the discovery of typical Persian gulf seals, a circular button seal[13]
I love these descriptions, but given the politics involved, I remain wary that the case may be overstated.
So what happened to the IVC? There are many theories, ranging from the far-fetched (“aliens nuked it”) to the perfectly reasonable (“shifting weather patterns made the area too dry.”) Invasion by the Indo-Aryan people could also have destroyed many cities. A massive flood hit Lothal in 1900 BC, which destroyed much of the city. Wikipedia’s description of the aftermath reminds me of the post-apocalyptic nature of the collapse of Rome:
Archaeological evidence shows that the site continued to be inhabited, albeit by a much smaller population devoid of urban influences. The few people who returned to Lothal could not reconstruct and repair their city, but surprisingly continued to stay and preserved religious traditions, living in poorly built houses and reed huts. That they were the Harappan peoples is evidenced by the analyses of their remains in the cemetery. While the trade and resources of the city were almost entirely gone, the people retained several Harappan ways in writing, pottery and utensils. About this time ASI archaeologists record a mass movement of refugees from Punjab and Sindh into Saurashtra and to the valley of Sarasvati (1900–1700 BCE).[17] Hundreds of ill-equipped settlements have been attributed to this people as Late Harappans a completely de-urbanised culture characterised by rising illiteracy, less complex economy, unsophisticated administration and poverty.
WARNING: This post is full of speculations that I am recording for my own sake but are highly likely to be wrong!
From Haak et al.
Hey, did you know that this isn’t actually Haak et al’s full DNA graph? The actual full dataset looks like this:
Isn’t it beautiful?
You’re going to have to click for the full size–sorry I couldn’t fit it all into one screen cap. I’m also sorry that the resolution is poor, and therefore you can’t read the labels (though you should be able to figure out which is which if you just compare with the smaller graphic at the top of the screen. (Supposedly there’s a higher resolution version of this out there, but I couldn’t find it.)
Why the reliance on a greatly cropped image? Just the obvious: the big one is unwieldy, and most of the data people are interested in is at the top.
But the data at the bottom is interesting, too.
On the lefthand side of the graph, we have a measure of granularity–how much fine detail we are getting with our genetic data. The bottom row, therefore, shows us the largest genetic splits between groups–presumably, the oldest splits.
From left to right, we have selections of different ethnic groups’ DNA. Old European skeletons constitute the first group; the mostly pink with some brown section is Native North/South American; the blue and green section is African; the big wide orange section is mostly European and Middle Eastern; then we have some kind of random groups like the Inuit (gold), Onge (pink, Indian Ocean), and Australian Aborigines; the heavily green areas are India; the mixed-up area splitting the green is Eurasian steppe; the yellow area is East Asian; and the final section is Siberian.
Level One: Sub-Saharan Africa (SSA) vs. Non-Sub-Saharan Africa
The bottom row shows us, presumably, the oldest split, between the orange and the blue. All of these light blue groups, from the Ju Hoan (Bushmen/San) to the Yoruba (Nigeria,) Somalis to Hadza (Tanzania,) African Americans to Shua (Khoe speakers of Namibia/Botswana,) are from Africa–sub-Saharan Africa, I’d wager (though I’m not sure whether Ethiopia and Somalia are considered “sub-Saharan.”)
All of the other groups–including the sampled north-African groups like Saharawari (from Western Sahara,) Tunisians, Algerians, Mozabites (Algeria,) and Egyptians–show up in orange.
(Note: Light green and orange are completely arbitrary color choices used to represent the DNA in these graphs; there is nothing inherently “orange” or “green” or any other color about DNA.)
I would not actually have predicted this–other studies I have read predicted that the split between the Bushmen, Pygmies, and other groups in Africa went back further in Africa than the split between Africans and non-Africans, but perhaps the Sahara has been the most significant barrier in human history.
Interestingly, the split is not absolute–there are Sub-Saharan groups with non-SSA admixture, and non-SSA groups with SSA admixture. In fact, most of the SSA groups sampled appear to have some non-SSA admixture, which probably has something to do with back-migration over the centuries; predictably, this is highest in places like Somalia and Ethiopia, fairly high along the east coast of Africa (which has historically been linked via monsoon trade routes to other, non-African countries;) and in African Americans (whose admixture is much more recent.) (Likewise, the admixture found in some of the hunter-gatherer peoples of southern Africa could be relatively recent.)
The Non-SSA groups with the most SSA admixture, are north African groups like the aforementioned Algerians and Tunisians; Middle Eastern groups like the Druze, Syrians, Bedouins, Jordanians, etc.; “Mediterranean” groups like the Sicilians and Maltese; various Jewish groups that live in these areas; and a tiny bit that shows up in the people of the Andaman Islands, Australia, and PNG.
(Oh, and in various old European skeletons.)
Level Two: “Western” vs. “Eastern”
Moving on to level two, we have the next big split, between “Easterners” (mostly Asians) and “Westerners” (mostly Europeans and Middle-Easterners.)
Natives of North/South America, Inuits, Andaman Islanders, Australian Aborigines, Papuans, the Kharia (an Indian tribe that has historically spoken a non-Indo-European language,) some central or northern Asian steppe peoples like the Evens (Siberians,) and of course everyone from the Kusunda (Nepal) through China and Japan and up through, well, more Siberians like the Yakuts, all show up as mostly yellow.
Everyone from Europe, the Middle East, the Caucuses, and all of the sampled Indian populations except the Kharia have orange.
A bunch of little groups from the middle of Eurasia show up as about half-and-half.
Interestingly, some of the older European hunter-gatherer skeletons have small quantities of “Eastern” DNA; this may not represent admixture so much as common ancestry. It also shows up, predictably, in Turkey and the Caucuses; in Russia/Finns; tiny quantities in places like the Ukraine; and quite significantly in India.
Significant “Western” admixture shows up in various Natives North/South Americans (probably due to recent admixture,) the Andaman Islands, Aborigines, PNG, (this may represent something to do with a common ancestor rather than admixture, per se,) and Siberia.
Level Three: Native North/South Americans vs. “Easterners”
At this point, the “light pink” shows up in all of the sampled indigenous tribes of North and South America. A fair amount of it also shows up in the Inuit, and a small quantity in various Siberian tribes. A tiny quantity also show up in some of the older European skeletons (I suspect this is due to older skeletons being more similar to the common ancestors before the splits than trans-Atlantic contact in the stone age, but it could also be due to a small Siberian component having made its way into Europe.)
Even at this level, there is a big difference evident between the groups from Central and South America (almost pure pink) and those from northern North America, (significant chunk of orange.) Some (or all) of that may be due to recent admixture due to adoption of and intermarrying with whites, but some could also be due to the ancestors of the Chipewyans etc. having started out with more, due to sharing ancestors from a more recent migration across the Bering Strait. I’m speculating, of course.
Level Four: Intra-African splits
I don’t know my African ethnic groups like I ought to, but basically we have the Bushmen (aka San,) and I think some Khoe / Khoi peoples in green, with a fair amount of green also showing up in the Pygmies and other hunter-gatherers like the Hadza, plus little bits showing up in groups like the Sandawe and South African Bantus.
Level Five: Australian Aborigines, PNG, and Andamanese split off.
Some of this DNA is shared with folks in India; a tiny bit shows up in central Asia and even east Asia.
Level Six: Red shows up.
This reddish DNA is found in all “Siberian” peoples, people who might have moved recently through Siberia, and people who might be related to or had contact with them. It’s found throughout East Asia, eg, Japan and China, but only found in high quantities among the Inuit and various Siberian groups. At this resolution, oddly, no one–except almost the Itelmen and Koryak–is pure reddish, but at higher resolutions the Nganasan are, while the Itelmen and Koryak aren’t.
Level Seven: The “Indos” of the Indo-Europeans show up
Although no pure light green people have yet been found, their DNA shows up everywhere the Indo-Europeans (aka Yamnaya) went, with their highest concentration in India. Perhaps the light green people got their start in India, and later a group of them merged with the dark blue people to become the Yamnaya, a group of whom then migrated back into India, leaving India with a particularly high % of light green DNA even before the dark blue shows up.
Interestingly, some of this light green also show up in the Andamanese.
Level Eight: The “Europeans” of the Indo-Europeans show up
The dark blue color originates, in the left-hand side of the graph, with a several-thousand years old population of European hunter-gatherers which, as you can see in the slightly younger populations on the far left, nearly got wiped out by a nearly pure orange population of farmers that migrated into Europe from the Middle East. This dark blue population managed to survive out on the Eurasian Steppe, which wasn’t so suited to farming, where it merged with the light-green people. They became the Yamnaya aka the Indo-Europeans. They then spread back into Europe, the Middle East, India, central Asia, and Siberia. (The dark blue in modern Native American populations is probably due to recent admixture.)
Level Nine: The Hadza
The Hadza (a hunter-gatherer people of Tanzania) now show up as bright pink. No one else has a lot of bright pink, but the Pygmies (Mbutu and Biaka,) as well as a variety of other eastern-African groups located near them, like the Luo, Masai, and the Somalis have small amounts.
Level Ten: The Onge (Andamanese)
Not much happens here, but the Onge (from the Andaman Islands) turn peach and stay that way. It looks like a small amount of peach DNA may also be found across part of India (southern India, I’m assuming.)
The Chipewyans turn brown; brown is also found in small quantities in Central America, in moderate quantities in eastern North America, and in the Eskimo/Inuit.
Level Twelve: Pygmies
The Biaka and Mbuti Pygmies differentiate from their neighbors. Tiny quantities of Pygmy DNA found in probably-nearby peoples.
Level Thirteen: Inuit/Eskimo
They become distinctly differentiated from other North American or Siberian tribes (olive green.), Their olive green shade is found in small quantities in some Siberian tribes, but interestingly, appears to be totally absent from other Native American tribes.
Level Fourteen: Horn of Africa
A dusty peach tone is used for groups in the Horn of Africa like the Somalis and Ethiopians, as well as nearby groups like the Dinka. Small amounts of dusty peach are are also found along the East Africa, North Africa, and the Middle East. Smaller amounts appear to be in a variety of other groups related to the Bushmen.
Level Fifteen: The light green turns teal
All of the light green in Europe turns teal, but much of the light green in India stays light green. (Teal also shows up in India.) I have no idea why, other than my aforementioned theory that India had more light green to start with.
Level Sixteen: Amazon Rainforest tribes
The Kuritiana and Suri show up in light olive; light olive is also found in small quantities in other parts of Central and South America, and tiny bits in parts of North America, and maybe tiny amounts in the Eskimo but I don’t see any in the Chukchi, Itelmen, etc.
Level Seventeen: Bedouins
The Bedouins turn light purple; this DNA is also found through out the Middle East, Turkey, North Africa, the Mediterranean (eg Sicily), Greece, Albania, Spain, Bulgaria, Ashkenazim, and a tiny bit In India.
Level Eighteen: Some Bushmen appear to split off from some other Bushmen.
I don’t know much about these groups.
Level Nineteen: Nothing interesting appears to happen.
Please remember that all of this is me speculating. I am definitely not an educated source on these matters, but I hope you’ve had as much fun as I’ve had peering at the DNA and thinking about how people might have moved around and mixed and split to make the colors.
There’s an exciting new study on Bronze Age genetics that you’ve probably already heard about but I’m gonna post about anyway because stuff like this is kind of like our core competency around here.
Summary: Scientist people sequenced genomes (did fancy lab things with genetics) on 101 dead Europeans/Asians from a few thousand years ago, to try to figure out who they were and where they came from.
One of the big anthro/archeology debates over the past 70 years or so has been whether the different layers of cultural artifacts (eg, pots) represent things being traded while people stay put, or people invading and bringing their new stuff with them.
To put it in a modern context, if you saw a picture of people from Papua New Guinea taken in 1900, wearing traditional tribal clothes, and then saw a picture taken a few decades later of people from Papua New Guinea wearing Levi’s and T-shirts, you might wonder if the people of PNG had gotten some new clothes, or if some people wearing Levi’s had gone to PNG.
The archaeological assumption pre-1940 or so was generally that different layers of cultural artifacts represented actually different groups of people, who had probably invaded and slaughtered the previous group of people. For a variety of reasons that you can probably figure out on your own, this view fell into disrepute around the mid 1940s, and so was replaced with the peaceful assumption that new cultural artifacts probably spread primarily through trade, not warfare. This is expressed through the phrase, “Pots, not people,” meaning that the pots were moving around, not the people.
So now we can sequence ancient genomes and shit, so we can actually take a look at the people in ancient burials and try to figure out if people in Layer of Pots A are related to people in Layer of Pots B, or if they are a totally different group of people. This is like squinting at the photographs of Papua New Guineans and trying to figure out if the people wearing the clothes look like they come from the same group, but with lab tools and science.
From an archaeology/anthropology perspective, this is big stuff people have been debating about for over a century.
Conclusions: The Yamnaya are the Indo-Europeans (or proto-Indo-Europeans.) They started out around the Ukraine, then about 4,000 years ago, they spread out (cause they had horses and wagons and chariots and such with wheels,) toward the west and east. In Europe they became the Corded Ware Culture. The Corded Ware may have headed toward the Urals and became some of the ancestors of the Indo-Iranians, but that’s still fuzzy.
The Yamnaya had high (relatively) rates of lactose tolerance, so they probably helped spread that gene/the gene helped spread them. Blond hair and blue eyes are not Yamnaya traits–those came from elsewhere. They probably had pale skins, but so did most of the people already in Europe, so they didn’t change that.
I had already figured the Yamnaya were the PIEs (along with a bunch of other people paying even vague attention to the field,) but apparently my rough mental estimate of the time frame was off. 4,000 years ago is not that long–we have quite abundant records of life 2,000 years ago, so imagine what sorts of records or rumors those Greeks and Romans had about life 2,000 years before themselves.
There is much that we once naively took as fact, then skeptically decided was myth, then decided was fact again, like the existence of Troy. (Of course, there is also much that has turned out to be actually false. Like Herodotus’s dog-sized ants.) Perhaps some more of what seems mere myth in the Greek and Roman accounts will turn out to have some basis in history.
On the eastern end of the geographic range they surveyed, the steppe-folks out there were later replaced with a more Asian population that looks more closely related to the Native Americans (possibly descended from a population ancestral to both them and the Native Americans.)
I don’t know yet just how violent the invasion was–the existing European population was not wiped out, a la the Dorset. The groups mixed; modern Europeans (and many Asians) are a mixture of many population waves. But we do know now that these were people, not just their pots.
The IVC (aka the Harappan, after one of their chief cities,) emerged around 3,300 BC in what is now Pakistan and India. It lasted for about 2,000 years; then essentially disappeared, its people either merging into other populations or migrating away. Over a thousand Harappan cities or settlements have been identified, most of them in Pakistan but a few in Afghanistan and a contested number in India. (Since India is eager to claim the IVC as its own, there are allegations that Indian archaeologists are inflating the number of significant sites on their side of the border.)
One of the unique features[14] of Dholavira is the sophisticated water conservation system[15] of channels and reservoirs, the earliest found anywhere in the world,[16] built completely of stone. The city had massive reservoirs, three of which are exposed.[17] They were used for storing fresh water brought by rains[15] or to store water diverted from two nearby rivulets.[18] This clearly came in response to the desert climate and conditions of Kutch, where several years may pass without rainfall. A seasonal stream which runs in a north-south direction near the site was dammed at several points to collect water. …
