Sogdiana & the Silk Road

To understand why the cities of Uzbekistan are where they are, forget the map's borders and follow the water. Two enormous rivers — the Amu Darya and the Syr Darya — flow down from the Pamir and Tian Shan mountains and cross a territory that, without them, would be pure desert.

• 📅Era 7th c. BC - 7th c. AD
• 🌍Region Transoxiana (Ma wara al-nahr)
• 🏛Peoples Sogdians, Greeks, Kushans
• 📍What to see Afrasiab (Samarkand)

Water explains everything

Between those two rivers lies a strip of oases fed by tributaries and by a canal system that the local population began building over three thousand years ago.

Samarkand exists because the Zeravshan River flows past it. Bukhara exists because a canal diverted from the Zeravshan reaches its oasis. Khiva exists because the Amu Darya delta allows agriculture in the middle of the Karakum desert. These are not accidents: they are logical responses to the land. And that logic has not changed in millennia.

The Greeks called this region Transoxiana — “what lies beyond the Oxus” (the Amu Darya). The Arabs called it Ma wara al-nahr, which means exactly the same thing.

Before there were Sogdians or Greeks, there was already organised life here. Excavations at Sarazm — a site 15 kilometres from Penjikent in modern Tajikistan, right on the border — have revealed a five-thousand-year-old city with metallurgy, decorated pottery and long-distance trade. Sarazm is a UNESCO World Heritage Site, and it proves that this region did not wait for the Silk Road to become a crossroads: it had been one since the Neolithic.

The Fergana Valley, to the east, produced the heavenly horses that obsessed Chinese emperors for centuries. Fergana horses were larger and faster than those of the Mongolian steppe, and the Han dynasty sent military expeditions three thousand kilometres to obtain them. This was not whimsy: horses were military technology, and access to the best horses determined who won wars.

The Sogdians: history’s first globalists

The people who dominated this crossroads during the first millennium BC were the Sogdians, an Iranian civilisation whose capital was Maracanda — present-day Samarkand. The Sogdians did not build a military empire like the Persians or the Macedonians. They built something more durable: a trade network connecting the Mediterranean with China when both ends of the world were entirely unaware of each other’s existence.

Sogdian merchant colonies have been documented archaeologically from the Indus Valley to the Mongolian steppe. Their business letters — found in an abandoned Chinese watchtower on the edge of the Taklamakan desert — are among the most revealing documents of antiquity: they detail prices, complaints about delinquent debtors and news of invasions, all with the pragmatic urgency of people who need the caravans to keep moving.

What made the Sogdians unique was not just their commercial talent. It was their capacity to absorb cultures without losing their own. They spoke Sogdian among themselves but negotiated in Persian, Greek, Chinese, Turkic. Their frescoes — those preserved at Afrasiab, the ancient city beneath modern Samarkand — depict Chinese ambassadors, Turkic warriors and Zoroastrian priests in a single scene. This is not decoration: it is an accurate portrait of what happened in their streets.

What you’ll see today: The Afrasiab site, on the hill north of Samarkand, is what remains of Maracanda. The Afrasiab Museum holds the 7th-century frescoes showing that Sogdian cultural diversity. They are extraordinary wall paintings, and most travellers walk right past them.

Alexander in Maracanda

In 329 BC, Alexander the Great crossed the Amu Darya with his army and entered Sogdian territory. What he expected was another people ready to submit after a decisive battle. What he found was something else entirely.

The conquest of Sogdiana cost Alexander three years — longer than any other campaign in his career. A local chieftain named Spitamenes organised a guerrilla campaign that attacked Macedonian garrisons, severed supply lines and vanished into the steppe. Alexander responded with brutality: he razed cities, executed entire populations, burned crops. It was here, not in Persia, where the Macedonian conqueror reached the limit of his capacity and began to lose the confidence of his own generals.

The result was paradoxical. Alexander married Roxana, a Bactrian princess, in what is now southern Uzbekistan. He left Greek garrisons that founded cities with names like Alexandria Eschate (“the furthest”). And he left. The Sogdians were still Sogdian when the Macedonians departed.

The Greco-Bactrian kingdoms

But the Greek imprint did not vanish entirely. After Alexander’s death, his generals divided the empire. The zone between the Hindu Kush and the Amu Darya became the Greco-Bactrian Kingdom — a Hellenistic state in the heart of Asia that lasted over a century. Its coins, with inscriptions in Greek and Kharoshthi, are among the most beautiful of antiquity. Its art fused Greek proportion with Buddhist iconography, producing an aesthetic — Gandhara art — that would define the image of the Buddha for centuries.

The Kushans and the Buddhist connection

Around the 1st century AD, a nomadic people of Chinese origin — the Yuezhi — had settled in Bactria and founded the Kushan Empire, one of the most extraordinary and least known states of the ancient world. At its peak, the Kushan Empire controlled territory from the Ganges Valley to southern Uzbekistan, and functioned as a hinge between four civilisations: Chinese, Indian, Persian and Roman.

The Kushans were Buddhist, and it was through their trade routes that Buddhism travelled from India to China. The Buddhist stupas excavated in southern Uzbekistan — at Termez, near the Afghan border — testify to that connection. Before Islam reached Central Asia, this region was a Buddhist corridor for centuries.

But the Kushans were not only Buddhist: they were eclectic. Their coins display Greek, Hindu, Zoroastrian and Buddhist deities — sometimes on the same coin. It is the perfect image of a crossroads civilisation: rather than choosing between influences, it accumulates them all.

Kushan trade with Rome was documented by both sides. The Romans paid enormous quantities of gold for the silk that arrived through Kushan territory, to the point that the Roman Senate repeatedly debated whether the flow of gold eastward was weakening the empire’s economy. Pliny the Elder complained that “India, China and the Arabian Peninsula drain us of a hundred million sesterces a year.” Much of that money passed through here.

What you’ll see today: The State History Museum in Tashkent holds Kushan sculptures and Greco-Bactrian objects that put this layer of history in perspective. Near Termez, close to the Afghan border, remains of Kushan-era Buddhist monasteries survive.

The Silk Road: a system, not a highway

The phrase “Silk Road” was coined by a German geographer in 1877. The people who lived by that trade never used the name. For them, it was simply the way — or rather the ways, because there was no single route but a network of itineraries that shifted with the season, the security situation and the politics.

What made Samarkand, Bukhara and Merv crucial nodes was not just their geography. It was what they offered: caravanserais with water, food and stables; moneychangers handling currencies from a dozen empires; craftsmen producing goods that caravans carried in both directions; and an administration that kept the routes safe in exchange for tolls. It was a sophisticated commercial infrastructure, and it worked because the Sogdians had been perfecting it for centuries.

What travelled was not just silk

Chinese silk was the most valuable commodity — the technology of its production was a state secret for centuries — but it was not the only one. Indian spices, Roman glass, Afghan lapis lazuli, Fergana horses, Chinese paper all moved along these routes. And something harder to weigh: ideas. Buddhism reached China along these routes. Zoroastrianism influenced early Islam through them. Papermaking techniques travelled from China to Samarkand in the 8th century, and from there to Europe.

In 7th-century Samarkand, you could find Chinese merchants, Buddhist monks, Zoroastrian priests, Jewish traders and Persian ambassadors — all in the same week, probably in the same bazaar. The Afrasiab frescoes show exactly that.

Caravanserais were the infrastructure that made all of this possible. They were buildings constructed at intervals of one day’s march (roughly thirty kilometres) along the main routes. They offered lodging, stables, water, storage and, in the largest, bathhouses and bazaars. They were the functional equivalent of a service station, hotel and shopping centre combined. Some were fortified — the routes were not always safe — and many had permanent garrisons.

The caravanserai network connecting Samarkand with Bukhara, and from there east and west, was a feat of logistical engineering comparable to the Roman roads. Without it, there was no Silk Road. The ruins of several of these caravanserais are still visible along the highway between the two cities.

What remains of all this

When you walk through Samarkand, it is easy to think that everything you see is the work of Tamerlane or the Soviets. But the city has much deeper layers. Afrasiab, the hill on which Maracanda stood, is an archaeological site containing remains from the 8th century BC. The walls visible from the road are Sogdian. The adjacent museum holds the 7th-century palace frescoes depicting life in a city that had been the centre of the world for over a thousand years.

This first layer — Sogdian, Greek, Kushan, mercantile — is what explains why these cities exist where they do. Everything that came afterwards — Islam, the Mongols, Tamerlane, the Russians, the Soviets — was built on this foundation. The oases are still where they were. The roads still connect the same points. And the logic of the territory remains the same one the Sogdians discovered three thousand years ago.

There is an almost uncomfortable continuity between past and present. Samarkand’s bazaars occupy the same space as the Sogdian bazaars. The routes connecting cities follow the same corridors between oases. The crops — cotton, melons, grapes, apricots — are variations of what was already cultivated here in the first millennium BC. Modernity has added layers — Soviet, post-Soviet, touristic — but has not changed the underlying structure.

Zoroastrianism: the religion before Islam

Before Islam, the dominant religion in Transoxiana was Zoroastrianism — the faith founded by Zarathustra (possibly in this very region, though the exact location is debated) based on the duality between good and evil, light and darkness, Ahura Mazda and Angra Mainyu. Zoroastrian fire temples stood at the centre of Sogdian community life. The sacred fire that burned within them could never be extinguished.

Zoroastrianism left a deep imprint on the region’s culture that survived the conversion to Islam. Nowruz — the Persian New Year celebrated on 21 March — has Zoroastrian roots and remains the most important holiday in the Uzbek calendar, more so than any Islamic festival. The bonfires, ritual foods and fire-jumping that accompany Nowruz are direct echoes of a tradition over three thousand years old.

When you walk through modern Samarkand and see families gathered around tables laden with sumalak (a sweet paste cooked through the night of the spring equinox), you are witnessing a practice that connects directly to the Zoroastrian Sogdians who inhabited Maracanda. The surface is Muslim; the roots are older.

Traveller’s tip: If your trip coincides with Nowruz (20–23 March), you will have the opportunity to see Uzbekistan at its most festive. Cities fill with celebrations, bazaars overflow with food and Uzbek hospitality — already remarkable — multiplies. It is the best time to understand that this country’s culture has layers reaching far beyond Islam.

How to read this layer in today’s landscape

Uzbekistan’s antiquity is not obvious. The most visible monuments — the Registan, the mosques, the madrasas — are Islamic and medieval. But the ancient layer is there if you know where to look.

In Samarkand, the Afrasiab site and its museum are the most direct point of access. The Sogdian walls are visible from the road skirting the hill to the north. The museum contains, in addition to the frescoes, a scale model of Maracanda at its peak that helps visualise the scope of the ancient city.

In Termez, near the Afghan border, the Kushan-era Buddhist remains (Fayaz-Tepa, Kara-Tepa) are accessible and little visited. It is one of the most remote stops on the Uzbek itinerary, but for anyone interested in the pre-Islamic layer, it is revelatory.

In the Fergana Valley, the tradition of Akhal-Teke horse breeding — descendants of those “heavenly horses” that obsessed the Chinese — remains alive. The horse breeders of Fergana are heirs to a tradition more than two thousand years old.

And across the entire region, the irrigation canals watering cotton fields and orchards still follow — for many stretches — the course of the canals the Sogdians dug three millennia ago.