Belarus

Belarus sits at a crossroads that most maps barely explain. It is a landlocked country in Eastern Europe, bordered by Russia to the east and northeast, Ukraine to the south, Poland to the west, and Lithuania and Latvia to the northwest. Its territory spans roughly 207,600 square kilometers, placing it among the mid-sized countries of Europe, and its coordinates stretch from about 51°N to 56°N latitude and 23°E to 33°E longitude. Minsk, the capital, lies near the country’s geographic center at approximately 53.9°N, 27.6°E.

This position on the East European Plain has never been incidental. Flat, open terrain made Belarus a natural passage between Central Europe and Russia, a route for armies, traders, and settlers for centuries. Rivers flowing in two directions, toward the Baltic Sea and toward the Black Sea, turned the region into a hinge point for European exchange long before modern borders existed. That hinge role still shapes how Belarus trades, builds roads, and connects with its neighbors today.

Belarus is generally classified as part of Eastern Europe, though its historical and cultural threads run into Central Europe and the Baltic world as well. Geographic regions are rarely as tidy as textbook boundaries suggest, and Belarus is a clear example: its landscape, language patterns, and history reflect centuries of contact with Poland, Lithuania, the Baltic states, and Russia alike.

A Lowland Country Shaped by Ancient Plains

Belarus is not a mountainous country. Its terrain consists mainly of gently rolling lowlands, broad plains, and low ridges, with elevation differences that would look unremarkable next to the Alps or Carpathians. The country sits within the East European Plain, one of the largest lowland regions on Earth, interrupted only by the modest rise of the Belarusian Ridge, a chain of low hills crossing the center-west of the country.

The Belarusian Ridge contains the country’s highest point, Dzyarzhynskaya Hara, at 345 meters above sea level. That figure says a lot about the country’s character: nowhere in Belarus does terrain pose the kind of physical barrier common in mountainous nations. South of the ridge lies the Polesian Lowland, a vast, flat, and often waterlogged region that forms part of the larger Polesia area shared with Ukraine. North of the ridge, glacial lake districts add gentle relief and thousands of small lakes to the landscape.

This modest relief has practical consequences. Flat terrain supports continuous agricultural land, straightforward road and rail construction, and slow-moving rivers prone to seasonal flooding rather than fast mountain runoff. It also means that wetlands, rather than steep valleys, dominate large sections of the country. Where elevation does little to divert water, water tends to sit, spread, and soak into peat.

Ancient Rock Beneath a Glacial Surface

Belarus’s geological story starts far below what the eye can see. The country rests on the East European Craton, an ancient and stable block of crystalline rock that formed billions of years ago and has experienced little tectonic disturbance since. Layers of sedimentary rock built up over this foundation across hundreds of millions of years, and the region’s long-term tectonic stability means Belarus has no active volcanic activity and negligible seismic risk.

The landscape visible today, however, owes far more to a much more recent process: repeated glaciations during the Quaternary period. Ice sheets advanced and retreated across the region multiple times, grinding down existing terrain and leaving behind moraines, outwash plains, and depressions that later filled with water to form lakes. The rolling uplands in the north, the sandy plains of Polesia, and the scattering of lake basins across the country are all glacial inheritances rather than the product of ongoing geological upheaval.

In short, Belarus combines one of Europe’s oldest geological foundations with one of its youngest surface landscapes. The ancient craton explains the country’s tectonic calm; the glaciers explain nearly everything visible on a map.

Rivers, Lakes, and the Wetlands of Polesia

Water defines Belarus’s geography as much as land does. The country straddles a major continental watershed, with rivers flowing in two different directions depending on which side of the low Belarusian Ridge they originate.

Rivers in the south and east, including the Dnieper, Pripyat, Berezina, and Sozh, drain toward the Black Sea. The Dnieper is the largest of these, flowing south through Ukraine, while the Pripyat crosses the wetlands of Polesia before joining it. The Berezina, a tributary of the Dnieper, is historically notable as the river Napoleon’s army struggled to cross during its retreat from Russia in 1812.

Rivers in the north and west drain toward the Baltic Sea instead. The Western Dvina, known as the Daugava once it reaches Latvia, flows north; the Neman, called the Nemunas in Lithuania, flows west; and the Western Bug forms part of the border with Poland before eventually reaching the Vistula system. This division matters beyond hydrology. Watersheds like this one shaped historical trade routes, since goods moving along Baltic-bound rivers connected naturally to northern European markets, while Black Sea-bound rivers connected Belarus to trade networks stretching south.

Belarus also holds more than 10,000 lakes, most concentrated in the glacially shaped north. The Braslav Lakes, near the Latvian border, form one of the country’s most significant lake districts, while Lake Narach, in north-central Belarus, is the largest natural lake in the country. These differ clearly from Belarus’s artificial reservoirs, such as the Vileyka Reservoir, which were built for water supply and hydropower rather than shaped by glacial retreat.

The Pripyat Marshes and Polesia

No discussion of Belarusian water geography is complete without Polesia, one of the largest wetland systems in Europe. The Pripyat Marshes, at its heart, once covered enormous stretches of southern Belarus and northern Ukraine. During the Soviet period, extensive drainage projects converted large sections of these wetlands into farmland, a decision that boosted agricultural output in the short term but reduced natural flood buffering and damaged peatland ecosystems.

These wetlands matter for reasons beyond scenery. Peatlands store carbon in ways few other landscapes can match, and intact marshes regulate river flow, reducing the severity of downstream flooding. Polesia also supports rural communities whose livelihoods, from fishing to reed harvesting, depend directly on wetland health. In recent decades, Belarus has taken part in wetland restoration projects aimed at reversing some of the ecological costs of earlier drainage, recognizing that a degraded marsh provides fewer benefits than a functioning one.

Forests and the Ancient Woodlands of Belovezhskaya Pushcha

Roughly two-fifths of Belarus is forested, a mix of coniferous and deciduous species reflecting the country’s position where boreal and temperate forest zones meet. Pine and spruce dominate sandier, well-drained soils, while oak, hornbeam, and other broadleaf species appear in richer soils further south and west. Forest cover is not evenly distributed. Polesia and the north hold the densest woodlands, while central agricultural regions have thinner tree cover.

The most significant of these forests is Belovezhskaya Pushcha, a transboundary woodland shared with Poland and recognized as a UNESCO World Heritage Site and Biosphere Reserve. It ranks among the last substantial remnants of the primeval lowland forest that once stretched across much of the European Plain. Calling it untouched wilderness would overstate the case: parts of the forest have been managed and hunted for centuries, including by Polish-Lithuanian nobility long before conservation became a priority. What makes it exceptional is its age, continuity, and the survival of species that vanished from most of Europe.

Belovezhskaya Pushcha is best known as the last stronghold of the European bison, a species hunted to extinction in the wild during the early twentieth century and reintroduced from captive populations descended partly from this very forest. Its cross-border conservation status, jointly managed by Belarus and Poland, reflects an unusual case of environmental cooperation persisting across a national boundary.

A Temperate Continental Climate

Belarus experiences a temperate continental climate, shaped by the competing influence of moist Atlantic air masses from the west and drier continental air from the east. Winters are cold, with January averages typically between -4°C and -8°C, and snow cover lasting for several months, especially in the north. Summers are mild rather than hot, with July averages generally between 17°C and 19°C. Annual precipitation ranges roughly from 550 to 700 millimeters, with the northwest and higher terrain receiving more than the drier southeast.

Regional variation is real but subtle. Northern Belarus experiences a slightly cooler, more Baltic-influenced climate, while southern Polesia trends warmer and drier in summer. Western regions feel more Atlantic moderation than eastern ones, which lean more continental. None of these differences are extreme by European standards, but they matter for agriculture, since growing seasons and frost risk shift accordingly across the country.

Climate change is already altering these patterns. Belarusian meteorological monitoring has recorded rising average temperatures, shorter periods of snow cover, and more variable precipitation, including both drought stress in some seasons and heavier rainfall events in others. These shifts affect river flow timing, wetland water levels, and the length of the growing season, with knock-on effects for both farming and forest health.

Natural Hazards and the Legacy of Chernobyl

Belarus’s flat terrain and tectonic stability spare it from the earthquakes, volcanic activity, and landslides that threaten mountainous or tectonically active countries. Its natural hazards instead center on water and weather. Spring snowmelt regularly causes flooding along the Pripyat, Dnieper, and their tributaries. Summer droughts and heatwaves stress crops and raise the risk of forest and peat fires, particularly in drained sections of Polesia where dried-out peat burns easily. Severe winter storms and occasional strong winds round out the country’s hazard profile.

The most significant environmental event in modern Belarusian history came from outside its borders. The 1986 Chernobyl nuclear disaster occurred in neighboring Ukraine, close to the Belarusian border, but prevailing winds carried a large share of the radioactive fallout north into Belarus. Southeastern regions, particularly parts of the Gomel and Mogilev oblasts, absorbed the heaviest contamination, while much of the rest of the country was far less affected. It would be inaccurate to describe Belarus as uniformly contaminated; the impact is concentrated and geographically specific.

In response, Belarus established restricted zones, including the Polesie State Radioecological Reserve, where agriculture and permanent settlement remain limited due to elevated radiation levels. Long-term environmental monitoring continues in affected areas, tracking soil and water contamination and guiding land-use decisions decades after the disaster.

Ecosystems and Biodiversity

Belarus’s ecosystems follow directly from its physical geography. Latitude and climate set the broad conditions for a boreal-temperate forest transition, glacial landforms determine where lakes and wetlands form, and centuries of agricultural land use have carved farmland out of what was once continuous forest and marsh. The result is a landscape of forests, peatlands, rivers, lakes, floodplains, and farmland arranged according to soil type, drainage, and elevation as much as human decision-making.

Wildlife in Belarus reflects these habitats closely. European bison and elk depend on the large forest tracts of places like Belovezhskaya Pushcha and the Berezinsky Biosphere Reserve. Red deer, roe deer, wolves, and lynx occupy mixed forest habitats across the country, while beavers and otters rely on the rivers and wetland margins that crisscross Polesia and the northern lake districts. Wetland birds, including storks and cranes, find some of their most important European breeding grounds in Belarusian marshes; the country is home to one of the largest white stork populations on the continent.

Conservation efforts distinguish carefully between native species recovering from historical decline, such as the European bison, and non-native or invasive species that have entered ecosystems through accidental introduction or escaped fur farms, such as the American mink. Wetlands, peatlands, and forests together provide services well beyond wildlife habitat: they regulate water flow, store carbon, and stabilize soil, functions that make their protection an economic as well as ecological priority.

Agriculture and Rural Land Use

Flat terrain, moderate rainfall, and a mix of fertile loams and sandier soils have made agriculture a defining feature of the Belarusian landscape. Dairy and cattle farming form the backbone of the sector, supported by extensive grassland and fodder production. Cereal crops, including wheat, barley, and rye, cover large stretches of central and eastern Belarus, while potatoes remain one of the country’s signature crops, grown widely enough that Belarus ranks among the world’s leading producers on a per capita basis. Sugar beet, flax, rapeseed, and vegetables round out the country’s agricultural output.

Regional differences track the underlying geography closely. Central Belarus, with richer soils and a slightly milder climate, supports the most intensive cereal and dairy farming. Polesia’s sandier, wetter soils historically limited agriculture until Soviet-era drainage opened new farmland, though at ecological cost. Northern Belarus, shaped by glacial lake districts, favors mixed farming and grassland over large-scale grain production.

Belarusian agriculture faces the same low-relief advantages and challenges found elsewhere in the country’s geography. Flat terrain simplifies mechanization and irrigation planning, but it also means poor natural drainage in wetter areas, requiring continued water management. Rising temperatures and more erratic rainfall add new pressure, altering planting windows and increasing the risk of both drought stress and flooding damage to crops.

Population, Minsk, and Settlement Patterns

Belarus is home to approximately 9.1 million people, according to 2024 estimates from the National Statistical Committee of the Republic of Belarus. Population density averages roughly 44 people per square kilometer, low by Western European standards, and the population has been gradually aging and slowly declining in recent years due to low birth rates and outward migration. Around 80 percent of Belarusians live in urban areas, a level of urbanization that concentrates people heavily into a handful of major cities.

Minsk anchors this pattern. As the capital and largest city, with a population of roughly two million, Minsk functions as Belarus’s political, industrial, educational, and cultural center all at once. Its central geographic location made it a natural hub for transportation even before independence, sitting along key rail corridors connecting Moscow, Warsaw, and beyond. That transportation role reinforced its economic dominance, drawing industry, universities, and administration into a self-reinforcing cycle of growth.

Beyond Minsk, several regional cities carry distinct geographical roles. Gomel, in the southeast near the Ukrainian border, developed as an industrial center within reach of both agricultural Polesia and Russian markets. Brest, in the southwest, functions as a major rail gateway toward Poland and the European Union, a role rooted in its border position. Vitebsk, in the northeast, grew as a historic cultural center, known for its architecture and as the birthplace of painter Marc Chagall. Grodno, near the Polish and Lithuanian borders, preserves a distinct architectural heritage shaped by centuries under Polish-Lithuanian rule. Mogilev, in the east, developed as an industrial city tied to regional manufacturing.

Away from these urban centers, rural Belarus consists of agricultural villages scattered across farmland, with population thinning out considerably in the forested and wetland stretches of Polesia and the north, where settlement has always been sparser.

Language, Culture, and National Identity

Belarusian cultural geography reflects centuries spent between larger neighboring powers. Both Belarusian and Russian hold official status, though Russian dominates daily use in cities, while Belarusian retains stronger footing in rural areas and in cultural and literary revival movements. This linguistic split is not a simple binary; regional dialects, historical Polish influence in the west, and generational differences all complicate any effort to draw clean lines around identity.

Cultural expression in Belarus draws on this layered history. Traditional architecture blends wooden rural building styles with the stone heritage of towns shaped under Polish-Lithuanian and later Russian rule. Folk music, weaving, and traditional crafts persist alongside a modern literary tradition that includes writers who wrote in both Belarusian and Russian across different eras. Cuisine reflects the country’s agricultural geography directly, built around potatoes, rye bread, dairy, and mushroom and berry foraging from the country’s extensive forests.

Belarusian and Russian cultural relationships are best understood as historically intertwined rather than opposed, a product of shared imperial and Soviet history rather than a simple story of one culture replacing another.

Government and Administrative Geography

The Republic of Belarus is a sovereign state with Minsk as its capital, governed as a republic with a presidential system. Administratively, the country divides into six regions, known as oblasts: Brest, Vitebsk, Gomel, Grodno, Minsk, and Mogilev, alongside the city of Minsk, which holds separate administrative status due to its size and capital role. Each oblast subdivides further into districts, which handle local administration and services.

These regional boundaries carry real geographical weight. Brest and Grodno oblasts border Poland and Lithuania and historically absorbed more Central European influence; Gomel and Mogilev border Russia and Ukraine and lean more toward eastern cultural and economic ties; Vitebsk in the north connects most directly to the Baltic region through its river systems.

It is worth stating clearly that the modern Republic of Belarus, established with its current borders in 1991, is a distinct political entity from the historical states that once controlled this territory, including the Grand Duchy of Lithuania, the Russian Empire, and the Soviet Union. Overlapping historical borders should not be confused with the sovereign boundaries recognized today.

A History Shaped by Geography

Belarus’s history has followed its rivers and plains as much as its politics. Early East Slavic tribes settled the river valleys of the Dnieper and its tributaries, laying groundwork later absorbed into the loose network of principalities known as Kievan Rus, including the Principality of Polotsk in what is now northern Belarus. From the thirteenth century onward, this territory became part of the Grand Duchy of Lithuania, a state that used the region’s river systems and open terrain to link Baltic and Slavic lands.

The union of Lithuania and Poland into the Polish-Lithuanian Commonwealth in 1569 drew Belarusian lands into a shared political and cultural sphere with Central Europe that lasted more than two centuries. Its collapse, formalized through the late eighteenth-century partitions of Poland, brought Belarusian territory under the Russian Empire, a shift that reoriented trade and administration eastward.

The twentieth century brought dramatic upheaval. World War I disrupted the region’s stability, and after a brief period of contested independence, Belarusian territory was incorporated into the Soviet Union as the Belarusian Soviet Socialist Republic. World War II devastated the country more severely than almost any other in Europe, with immense population losses and widespread destruction tied directly to Belarus’s position as a land corridor between Germany and Russia. Postwar Soviet industrialization rebuilt cities and expanded rail and manufacturing infrastructure, laying groundwork still visible in the country’s economic geography today. Independence followed the dissolution of the Soviet Union in 1991, establishing the Republic of Belarus within its present borders.

Industry, Trade, and Economic Geography

Belarus’s modern economy reflects both its Soviet industrial legacy and its position along major transport corridors. Manufacturing remains central, particularly machinery production, including tractors and trucks built by long-established Belarusian firms, along with chemical production and food processing tied closely to the country’s agricultural output. Forestry supports a wood products industry drawing on the country’s extensive tree cover, while an information technology sector has grown substantially in Minsk in recent decades, adding a service-based layer to a historically industrial economy.

Minsk dominates the country’s service economy and higher-value manufacturing, while regional cities such as Gomel and Mogilev anchor heavier industrial production tied to raw material processing. Agricultural lowlands across central Belarus support food processing industries close to where crops and livestock are produced, reducing transport distances between farm and factory. Forest resources in the north and Polesia supply timber industries positioned near the raw material itself.

Transportation corridors linking Belarus to Russia, Poland, Lithuania, Latvia, and Ukraine give the country an economic role beyond its own production, functioning as a transit route for goods moving across Eastern Europe.

Energy and Natural Resources

Belarus imports the majority of its energy resources, relying heavily on natural gas and crude oil sourced from Russia. Two major oil refineries, at Mozyr and Novopolotsk, process imported crude into refined products both for domestic use and export, making refining a notable part of the country’s energy-related industry despite the absence of significant domestic oil reserves.

To reduce this dependence on imported gas, Belarus built its first nuclear facility, the Belarusian Nuclear Power Plant near Ostrovets in Grodno region. Its first reactor unit began commercial operation in 2021, with a second unit following in 2023, together supplying a substantial share of the country’s electricity. Hydropower, by contrast, plays only a minor role. The same low-relief landscape that supports agriculture and transportation limits the drop in elevation needed for large-scale hydroelectric generation, unlike mountainous European countries where rivers descend steeply enough to generate significant power. Small hydro installations exist on the Dnieper and Western Dvina, alongside early-stage development of biomass, solar, and wind energy.

Balancing energy dependence, environmental impact, and nuclear safety remains a central challenge in the country’s energy planning, particularly as climate policy increasingly factors into decisions about future generation sources.

Transportation and Regional Connectivity

Belarus’s flat terrain has long supported extensive road and rail construction, free from the tunneling and grading challenges mountainous countries face. Rail networks built during the Russian Imperial and Soviet periods still form the backbone of the country’s transportation system, linking Minsk to Moscow, Warsaw, and other major regional centers. Major highways follow similar east-west and north-south routes, reinforcing Belarus’s long-standing role as a land bridge connecting Western and Central Europe with Russia and, through southern corridors, Ukraine and the Black Sea region.

Rivers play a smaller transportation role today than in earlier centuries, when the Dnieper and Pripyat carried significant trade traffic, though sections remain used for limited freight and recreation. Minsk National Airport serves as the country’s principal international air gateway, while border crossings with Poland, Lithuania, and Latvia remain critical points for trade with the European Union.

This connectivity underpins much of Belarus’s economic geography. Industrial development in border regions like Brest and Grodno owes much to their position along international transport routes, and continued investment in transportation infrastructure remains tied directly to the country’s role as a transit corridor rather than to size or population alone.

Environmental Challenges and Climate Change

Belarus faces a set of environmental challenges rooted directly in its physical geography. Historical wetland drainage across Polesia altered hydrology at a landscape scale, and drained peatlands remain vulnerable to fires during dry summers. Agricultural runoff and industrial pollution affect water quality in some river systems, while biodiversity faces ongoing pressure from habitat fragmentation and land conversion. Radioactive contamination in parts of the southeast, a legacy of Chernobyl, continues to require monitoring and land-use restriction decades after the disaster.

Climate change compounds these pressures. Rising average temperatures, reduced snow cover, and more erratic precipitation are already altering river flow patterns, increasing drought risk in some seasons, and raising flood risk in others. Forests face added stress from shifting temperature and moisture conditions, while wetlands must contend with both changing water availability and continued human pressure on drainage and land use. Agricultural planning increasingly has to account for less predictable growing seasons.

Belarus has responded through environmental monitoring programs and, in parts of Polesia, targeted wetland restoration aimed at reversing some of the ecological costs of earlier drainage. These efforts remain limited relative to the scale of historical change, but they represent a meaningful shift in how the country manages the relationship between agriculture, industry, and its wetland and forest resources.

Protected Areas and Sustainable Development

Belarus maintains several protected areas that reflect the country’s major ecosystems. Belovezhskaya Pushcha National Park protects the transboundary primeval forest and its European bison population, jointly managed with Poland. Braslav Lakes National Park safeguards the glacial lake district in the north, while Narachansky National Park protects the country’s largest natural lake and surrounding forest. Pripyatsky National Park focuses on the wetlands of Polesia, preserving floodplain habitat central to the region’s biodiversity and flood regulation. The Berezinsky Biosphere Reserve, recognized internationally under UNESCO’s Biosphere Reserve program, protects a mix of forest and wetland habitat in northern Belarus and has played a role in European bison reintroduction efforts.

These protected areas sit at the center of a broader challenge: balancing agriculture, forestry, industry, and energy development against the long-term value of intact forests, wetlands, and river systems. Because these ecosystems provide flood control, carbon storage, and biodiversity habitat alongside their economic uses, sustainable management requires treating them as long-term assets rather than resources to be drawn down quickly.

Belarus’s Regional and International Geographical Importance

Belarus’s location between Central Europe, Russia, the Baltic region, and Ukraine gives it geographical significance well beyond its size. Its position on the East European Plain places it at the meeting point of Baltic and Black Sea drainage systems, a role reflected in centuries of trade and cultural exchange along its rivers. Its transportation corridors continue to connect Western and Central Europe with Russia, reinforcing a land bridge function that has shaped the country since the era of the Grand Duchy of Lithuania.

Environmental cooperation adds another dimension to this regional role. The shared management of Belovezhskaya Pushcha with Poland, along with continued attention to cross-border river systems and wetland conservation, illustrates how physical geography can create shared interests that outlast political differences. Belarus’s forests, wetlands, and agricultural lowlands remain resources of both national and regional importance, tying its environmental management decisions to outcomes beyond its own borders.

Key Geographic Facts About Belarus

Geographic Fact	Information
Official name	Republic of Belarus
Region	Eastern Europe
Capital	Minsk
Location	East European Plain
Total area	Approximately 207,600 square kilometers
Population	Approximately 9.1 million (National Statistical Committee of Belarus, 2024)
Highest point	Dzyarzhynskaya Hara, 345 meters
Major physical regions	East European Plain, Belarusian Ridge, Polesian Lowland
Major rivers	Dnieper, Pripyat, Berezina, Sozh, Western Dvina, Neman, Western Bug
Major wetland region	Polesia and the Pripyat Marshes
Major forest landscape	Belovezhskaya Pushcha
Bordering countries	Russia, Ukraine, Poland, Lithuania, Latvia
Climate	Temperate continental
Currency	Belarusian ruble
Government	Republic with a presidential system
Major economic sectors	Manufacturing, agriculture, energy-related industries, forestry, and services
Major natural hazards	Spring flooding, drought, forest and peat fires, severe winter weather
Major environmental challenges	Climate change, wetland degradation, pollution, and radioactive contamination in southeastern areas

How Plains, Water, and History Define Belarus

Belarus makes sense once its geography and history are read together rather than separately. Its position on the East European Plain explains the lowland terrain, the slow, wide rivers, and the wetlands that spread across Polesia instead of draining quickly downhill. Those same rivers, split between Baltic and Black Sea drainage, explain centuries of trade routes and cultural contact that shaped everything from the Grand Duchy of Lithuania to the rail lines running through Minsk today.

The country’s forests and wetlands, especially Belovezhskaya Pushcha and the Pripyat Marshes, are not scenic backdrops. They regulate water, store carbon, and support wildlife that has largely disappeared from the rest of Europe, and their management reflects an ongoing negotiation between agricultural use and ecological preservation. Chernobyl’s legacy in the southeast is a reminder that geography does not stop at political borders, while the Belarusian Nuclear Power Plant reflects a deliberate attempt to change the country’s energy geography going forward.

Population patterns, concentrated heavily in Minsk and a handful of regional cities, follow transportation corridors built across flat terrain that made large-scale rail and road networks possible. Agriculture and industry, in turn, follow the soils, climate, and infrastructure that this landscape provides. None of these threads, physical, historical, or economic, stand apart from the others. Belarus’s identity as a nation emerges directly from how plains, rivers, wetlands, and forests interact with the people who have settled, farmed, and built across them for more than a thousand years.