Episodes
The Fall of Rome: Inflation, Coins, and the Road to Ruin
In this episode of Why Every Great Empire Eventually Falls, Lucas and Luna explore the economic unraveling of the Roman Empire, focusing on the third-century crisis and the devastating inflation that followed. They trace the debasement of the denarius under emperors like Nero and Caracalla, the rise of the antoninianus, and the failed reforms of Aurelian and Diocletian. The conversation weaves through the Edict on Maximum Prices, the role of the follis, and the long-term consequences of a…
The Fall of the Aksumite Empire: A Hidden Giant's Last Stand
In this episode, Lucas and Luna explore the fall of the Aksumite Empire, one of antiquity's great powers that once rivaled Rome and Persia. They trace its rise under King Endubis, whose coins minted in Ge'ez spread across trade routes, and its dominance over the Red Sea trade. But by the seventh century, Aksum's world was shifting: the rise of Islam, the loss of trade routes, and the mysterious 'Pestilence of Justinian' that may have devastated the population. Lucas explains how Aksum's last…
The Sicilian Vespers: When an Island Empire Cracked
In this episode, Lucas and Luna examine the Sicilian Vespers of 1282, the bloody uprising that shattered Angevin rule over Sicily and reshaped the medieval Mediterranean. They trace the complex web of alliances—Pope Martin IV, Charles of Anjou, King Peter III of Aragon, and the Byzantine emperor Michael VIII Palaiologos—that turned a local revolt into a war for control of the island. Lucas explains how the Vespers began after decades of heavy taxation and foreign administration, and how the…
The Long Fall: Why Rome's Western Empire Lasted So Long
Why did the Western Roman Empire, facing repeated crises, survive for centuries before its final collapse? In this episode, Lucas and Luna trace the waves of barbarian invasions, the rise of the foederati system, the strategic blunders of Stilicho, and the economic strains that hollowed out the empire. They revisit the Battle of Adrianople in 378, the catastrophic sack of Rome in 410, and the final deposition of Romulus Augustulus in 476. Along the way, they consider the weight of history: how…
The Parthian Echo: How a Ghost Empire Shaped Rome
In this episode, Lucas and Luna explore the strange afterlife of the Parthian Empire. After its fall in 224 CE, Parthia didn't vanish entirely—its cavalry tactics, court rituals, and even its architectural styles echoed through the Sasanian dynasty and beyond. The hosts trace how the Parthian battle formation, the cataphract charge, and the famous 'Parthian shot' influenced Roman military thought for centuries. They also look at the Parthians' role as cultural middlemen on the Silk Road, and…
The Last Sassanian King: Flight to Merv and the Fall
In this episode, we trace the final years of the Sasanian Empire through the eyes of its last king, Yazdegerd III. After the catastrophic defeat at al-Qadisiyyah, Yazdegerd fled the capital Ctesiphon, hoping to rally resistance from the eastern provinces. We follow his journey to Merv, the ancient oasis city that became his last refuge, and the complex web of allegiances and betrayals that spelled the end of a 400-year dynasty. We explore the concept of khvarenah, the royal glory that was said…
The Last Sasanian King: Flight to Merv and the Fall
In this episode, Lucas and Luna trace the final years of the Sasanian Empire through the harrowing flight of its last king, Yazdegerd III. After the devastating defeat at al-Qadisiyyah in 636, Yazdegerd abandoned Ctesiphon, the glittering capital, and retreated eastward, hoping to rally resistance against the advancing Arab armies. We follow his journey through the Zagros Mountains, his desperate stand at Nihavand, and his final refuge in Merv, where a provincial governor's betrayal sealed his…
The Last Sasanian King: Flight to Merv and the Fall
In this episode, Lucas and Luna trace the final years of the Sasanian Empire through the eyes of its last king, Yazdegerd III. After the disastrous defeat at al-Qadisiyyah and the loss of Ctesiphon, Yazdegerd fled eastward, clinging to the Zoroastrian concept of khvarenah — the divine glory that legitimizes a ruler. They follow his desperate retreat across Iran to Merv, where he sought refuge with a local governor named Mahoe, who ultimately betrayed and killed him. The episode explores the…
The Fall of the Mauryan Empire: Ashoka's Legacy and Aftermath
This episode of Why Every Great Empire Eventually Falls explores the collapse of the Mauryan Empire, the first great Indian empire, which unified most of the subcontinent under Chandragupta Maurya and reached its zenith under Ashoka. After Ashoka's conversion to Buddhism and his pacifist reign, the empire began to unravel within decades. We look at the historical debate around the 'Mauryan decline' — was it a sudden fall or a slow decay? We examine the roles of the heavy taxation, the…
The Last Sasanian King: Yazdegerd III's Flight to Merv
In this episode of Why Every Great Empire Eventually Falls, Lucas and Luna trace the final years of the Sasanian Empire through the tragic figure of Yazdegerd III. After the catastrophic defeat at al-Qadisiyyah in 636, the young king fled his capital Ctesiphon, hoping to rally resistance against the Arab Muslim armies sweeping through Persia. We follow his desperate retreat eastward, his brief alliances with the surviving nobility, and the betrayal at Merv in 651 that ended a dynasty over four…
The Parthian Shot: Empire on Horseback
In this episode, Lucas and Luna explore the Parthian Empire, the horsemen of antiquity who held Rome at bay for centuries. They trace the Parthians' origins from the nomadic Parni tribe, their rise under the Arsacid dynasty, and their zenith under Mithridates II. The conversation covers the devastating defeat of Crassus at Carrhae, the empire's unique feudal structure, and the famed cataphract heavy cavalry. They also examine the empire's cultural blend — from Hellenistic influences to…
The Fall of the Sasanian Empire: A 400-Year Dynasty's Last Stand
In this episode of Why Every Great Empire Eventually Falls, we explore the dramatic final years of the Sasanian Empire, the last great Persian dynasty before the Islamic conquests. We follow the reign of Khosrow II, whose ambition to recreate the Achaemenid Empire led to a devastating war with Byzantium that bled both superpowers dry. We examine the pivotal Battle of al-Qadisiyyah in 636, where the young commander Sa'd ibn Abi Waqqas faced the legendary Sasanian general Rostam Farrokhzad, and…
The Sassanian Surge: How Persia's Last Empire Rose and Fell
In this episode of Why Every Great Empire Eventually Falls, Lucas and Luna explore the rise and fall of the Sassanian Empire, the last great Persian dynasty before the Islamic conquest. They trace its founding by Ardashir I in 224 CE, its zenith under Khosrow I with his administrative and military reforms, and the catastrophic final war with the Byzantine Empire under Khosrow II that bled both empires dry. The conversation covers key figures like Shapur I, who captured a Roman emperor, and the…
The Great Dying That Reset Rome
We often blame barbarians for Rome's fall, but what if the real killer was something you couldn't see? This episode of Fexingo History looks at the Antonine Plague, the mysterious outbreak that swept through the Roman Empire in 165–180 CE, killing millions just as the Pax Romana was peaking. We trace its possible origins in the siege of Seleucia, follow its spread along Rome's trade routes, and consider how it drained the imperial treasury, thinned the legions, and undermined the confidence…
Silver and the Roman Decline: A Spanish Malaise
In this episode, Lucas and Luna explore how the Spanish Empire's silver wealth sowed the seeds of its own decline. They trace the boom in Potosí and Zacatecas, the mita labor system, and the inflationary spiral that baffled contemporaries. They revisit the debates of the School of Salamanca, where Martín de Azpilcueta articulated an early quantity theory of money, and see how Philip II's wars and his reliance on silver-backed credit led to repeated bankruptcies. The conversation highlights how…
The Fall of the Yuan Dynasty When the Mongols Lost China
In this episode of Why Every Great Empire Eventually Falls, Lucas and Luna explore the collapse of the Mongol-led Yuan dynasty in China. They focus on the Red Turban Rebellion, a peasant uprising sparked by famine, flooding, and corruption that brought down the most powerful empire of the thirteenth century. The conversation walks through the rise of Zhu Yuanzhang, a former monk turned rebel leader who founded the Ming dynasty, and the final days of Mongol rule as the last Yuan emperor fled…
The Fall of Hattusa: Hittite Empire's Last Stand
The Hittite Empire dominated Anatolia and the Levant for centuries, but by 1178 BCE it had vanished. This episode explores the final years of Hattusa, the Hittite capital, and the empire's collapse in the wake of internal strife, drought, and the mysterious Sea Peoples. Lucas and Luna discuss the reign of Suppiluliuma I, the Battle of Kadesh, the Treaty of Kadesh with Egypt, the economic and military strains that led to abandonment, and the aftermath that saw the rise of Neo-Hittite states.…
The Fall of Assyria: Nineveh's Last Stand and an Empire's Vanishing
In 612 BC, the mighty Assyrian Empire, which had terrorized the ancient Near East for centuries, collapsed in a matter of years. This episode explores the rapid unraveling of Assyria after the death of its last great king, Ashurbanipal. We focus on the alliance of Medes, Babylonians, and Scythians that besieged and sacked Nineveh, the magnificent capital. We detail the battle itself—how the Khusur River flood may have breached the walls—and the final resistance at Harran under Ashur-uballit II.…
Aztec Apocalypse: Smallpox at Tenochtitlan's Siege
In 1521, the Aztec capital Tenochtitlan fell after a brutal 93-day siege. But the real killer arrived years earlier: smallpox. In this episode, Lucas and Luna explore how a single disease, introduced by Spanish invaders, devastated the Aztec population long before the final battle. They examine Moctezuma II's fateful decisions, the role of native allies like the Tlaxcalans, and the controversial end of the last tlatoani, Cuauhtémoc. How did a pathogen tip the scales of empire? And what does it…
How the Persian Empire Fell at Gaugamela Darius III Last Stand
This episode explores the sudden collapse of the Achaemenid Persian Empire, focusing on the Battle of Gaugamela in 331 BCE. Lucas and Luna discuss how internal satrapal disunity, over-reliance on mercenaries, and the fatal miscalculations of Darius III allowed Alexander the Great to topple the world's largest empire in just a few years. They examine the role of King's Eyes, the Royal Road, and the betrayal of key satraps like Bessus. Drawing parallels to other fallen empires, they reveal how…
The Inca Empire's Collapse: Civil War, Disease, and Conquest
In the 16th century, the vast Inca Empire, known as Tawantinsuyu, stretched from modern-day Colombia to Chile, held together by a sophisticated system of roads, agriculture, and governance. But within a few years, it crumbled before a small band of Spanish conquistadors led by Francisco Pizarro. Conventional narratives often credit European steel, horses, and gunpowder, but the real story is far more complex. A devastating civil war between brothers Atahualpa and Huáscar had only recently…
The Yellow Turban Rebellion That Broke Han China
In 184 AD, the Han Dynasty—one of history's great empires—faced a revolt that exposed every crack in its foundation. The Yellow Turban Rebellion, led by the charismatic healer Zhang Jiao, fused Daoist prophecy with peasant fury. But the real story isn't the uprising itself; it's how the Han court's response—handing military command to regional governors—shattered central authority forever. In this episode, Lucas and Luna trace the fall of Han China through eunuch conspiracies, the Battle of…
Angkor's Water Crisis: The Fall of the Khmer Empire
The Khmer Empire built the largest pre-industrial city in the world, Angkor, sustained by an elaborate network of canals, reservoirs, and embankments. But this brilliant water management system became a vulnerability. In this episode, Lucas and Luna explore how environmental stress, deforestation, and the rigidity of the baray system contributed to the empire's decline. They discuss the reigns of Suryavarman II, who built Angkor Wat, and Jayavarman VII, whose massive infrastructure projects may…
The Battle of Talikota: Vijayanagara's Sudden Collapse
In 1565, the Vijayanagara Empire, one of the wealthiest and most powerful kingdoms in Indian history, was shattered in a single day at the Battle of Talikota. This episode examines how the hubris of its regent, Rama Raya, united the Deccan Sultanates against him, leading to a catastrophic defeat that saw the capital sacked and the empire fragmented. We explore the diplomatic miscalculations, the brutal execution of Rama Raya, and the aftermath that left the ruins of Hampi as a haunting…
When Crusaders Sacked Constantinople: Byzantium's Fatal Wound
The Fourth Crusade was supposed to reclaim Jerusalem for Christendom. Instead, it turned on the Christian city of Constantinople, sacking it in 1204 and permanently crippling the Byzantine Empire. In this episode, Lucas and Luna explore the bizarre chain of events: the young prince Alexios who promised riches he couldn't deliver, the blind Doge of Venice Enrico Dandolo who outmaneuvered everyone, and the brutal three-day sack that scattered ancient treasures. They discuss how this collapse of…
The Gate That Opened the Fall: Wu Sangui and the Ming Collapse
In 1644, the Ming Dynasty teetered on the brink as internal rebellions and the Little Ice Age shattered its hold. Rebel leader Li Zicheng seized Beijing, and the last Ming emperor, Chongzhen, took his own life. But the fate of China hinged on the decision of one general: Wu Sangui, commander of the elite troops at Shanhaiguan, the strategic pass guarding the Manchu frontier. Initially leaning toward surrender, Wu turned back after a personal insult—the seizure of his family and his concubine…
How the Spanish Empire's Silver Flood Destroyed Its Economy
What if the greatest economic windfall in history actually destroyed an empire from within? This episode of Why Every Great Empire Eventually Falls examines how the Spanish Empire's seemingly endless flow of silver from Potosí and Zacatecas triggered a devastating cycle of inflation, debt, and decline. Lucas and Luna explore the real story behind the 'price revolution'—how New World bullion devalued Spanish currency, made domestic manufacturing uncompetitive, and turned Spain into a nation…
Disaster Diplomacy: How Earthquakes Reshaped Empires
Did earthquakes bring down ancient empires? In this episode, Lucas and Luna explore the surprising role of seismic disasters in the fall of complex societies. From the 365 AD Crete earthquake that shattered Rome's Eastern Mediterranean hold to the 1303 Hongdong quake that destabilized Yuan China, they examine how empires responded—or failed to respond—to sudden geological shocks. They discuss archaeological evidence at Troy and Mycenae, the earthquake storm theory along the North Anatolian…
Aksum's Fall: When Climate Change Crashed an Empire
In this episode, Lucas and Luna explore the collapse of the Aksumite Empire, one of the ancient world's great powers, centered in what is now Ethiopia and Eritrea. They focus on a less-discussed factor: a dramatic shift in monsoon patterns around 700 CE that disrupted the agricultural and trade systems Aksum depended on. The hosts trace how the empire, once a rival of Rome and Persia, saw its port of Adulis silt up and its highlands dry out, leading to economic decline and political…
The Songhai Empire's Last Stand at Tondibi
In this episode, Lucas and Luna examine the dramatic collapse of the Songhai Empire, once the largest empire in West African history. They focus on the decisive 1591 Battle of Tondibi, where Moroccan forces armed with gunpowder weapons defeated a vastly larger Songhai army. The discussion covers the reign of Askia Ishaq II, the internal divisions that weakened Songhai, the role of the Moroccans' mercenary leader Judar Pasha, and the aftermath that saw the fall of Gao and Timbuktu. The episode…
When Romes Bread and Circuses Failed Valentinian IIIs Last Stand
In this episode, Lucas and Luna explore the final act of the Western Roman Empire through the lens of one desperate emperor: Valentinian III. They trace how his reign (425-455 CE) was shaped by the crumbling of the empire's core bargain — bread and circuses — as barbarian generals like Flavius Aetius and Geiseric the Vandal rewrote the rules. Lucas unpacks the assassination of Aetius, the Vandal sack of Rome in 455, and the collapse of the imperial economy that left even the annona (grain dole)…
How the Akkadian Empire Fell: Climate, Collapse, and the Curse of Akkad
The Akkadian Empire was the world's first empire, forged by Sargon of Akkad around 2334 BCE. It stretched from the Persian Gulf to the Mediterranean, uniting Sumer and Akkad under one rule. But within two centuries, it had collapsed into chaos. In this episode, Lucas and Luna explore the dramatic fall of Akkad, focusing on the mysterious 'Curse of Akkad'—a literary text that blames the empire's downfall on the impiety of King Naram-Sin. Was it divine punishment, or did climate change play a…
The Fall of the Ottoman Empire: Why Reforms Could Not Save the Sick Man of Europe
In this episode of Why Every Great Empire Eventually Falls, Lucas and Luna explore the slow decline and eventual collapse of the Ottoman Empire, focusing on the 19th-century reform efforts known as the Tanzimat. They discuss how the empire's attempts to modernize its military, bureaucracy, and legal system were undermined by internal resistance, foreign pressure, and the rise of nationalist movements. Key figures include Sultan Mahmud II, who abolished the Janissaries; Mustafa Reşid Pasha…
Aksum's Fall: Climate, Trade, and a King's Conversion
In this episode, Lucas and Luna explore the decline of the Aksumite Empire, one of antiquity's great but lesser-known powers. They focus on the reign of King Ezana, who converted to Christianity in the 4th century, and examine how Aksum's economy, reliant on Red Sea trade and the port of Adulis, faltered as climate shifts and the rise of Islam rerouted commerce. Key figures include Ezana, Frumentius (the missionary who converted him), and Kaleb (who invaded Yemen). The conversation touches on…
The Roman Tetrarchy's Last Gasp: Why Four Rulers Couldn't Save an Empire
In this episode, Lucas and Luna dive into the final years of the Roman Tetrarchy—Diocletian's ambitious experiment to divide imperial power among four co-emperors to prevent civil war and administrative collapse. They explore the system's inherent flaws, the ruthless ambition of figures like Constantine and Maxentius, and the catastrophic failure of the Tetrarchy's succession plan. Key events include the death of Constantius Chlorus in 306 AD, the usurpation of Maxentius, the Battle of the…
The Byzantine Empire's Tax Revolt That Rewrote History
In this episode, Lucas and Luna explore the Nika Revolt of 532 CE, a catastrophic uprising that nearly toppled Emperor Justinian I and burned half of Constantinople. They dive into the rivalry of the Blue and Green circus factions, the heavy-handed tax policies of John the Cappadocian, and the desperate moment when Justinian's own guards abandoned him. The conversation reveals how Theodora's fierce speech turned the tide, how Belisarius and Mundus carried out the Hippodrome massacre, and why…
Did the Wari Empire Fall Because of Its Own Success
What happens when an empire grows too efficient for its own good? In this episode, Lucas and Luna explore the rise and collapse of the Wari Empire, a pre-Incan civilization that ruled the Peruvian highlands from 600 to 1100 CE. Unlike the Inca or Maya, the Wari created a remarkably standardized and centralized state, building identical administrative centers, using modular architecture, and developing a vast road network that the Inca later adopted. But their very success may have been their…
The Plague That Broke Athens: Thrasybulus and the Fall of Empire
In this episode, Lucas and Luna explore how the Peloponnesian War and the devastating Plague of Athens (430–426 BCE) shattered the Athenian Empire's golden age. They focus on the little-known figure of Thrasybulus, a democratic leader who helped restore Athenian democracy after the oligarchic coup of the Thirty Tyrants (404 BCE), only to see imperial overreach and plague fatally weaken Athens. The conversation covers Pericles' Funeral Oration, the siege of Plataea, the Sicilian Expedition, and…
Ashoka's Dhamma: When an Empire Chose Peace Over Conquest
In the 3rd century BCE, the Mauryan Empire under Chandragupta Maurya and his successors built a vast, centralized state stretching from the Hindu Kush to the Bay of Bengal. Then came the Kalinga War in 261 BCE. Ashoka, the grandson of Chandragupta, watched a hundred thousand die and walked away. This episode follows the pivot: from military expansion to the propagation of Dhamma — a moral code rooted in Buddhism but shared across a diverse empire. Lucas and Luna explore the rock and pillar…
The Roman Tetrarchy: Why Four Rulers Couldn't Save an Empire
Diocletian's Tetrarchy was a revolutionary experiment to stop Rome's endless civil wars. He divided the empire into four parts, each ruled by a senior Augustus or junior Caesar, and hoped that orderly succession would prevent the chaos that had nearly destroyed Rome in the 3rd century. But the system lasted barely twenty years before collapsing into even bloodier conflict. This episode explores why the Tetrarchy failed: not from external invasion, but from human ambition. We follow the rise of…
Why the Hittite Empire Disappeared Without a Trace
The collapse of the Hittite Empire around 1200 BCE is one of history's great vanishing acts. Lucas and Luna examine the evidence: the mysterious Sea Peoples who razed Hattusa, the internal struggles between Great Kings and their vassals, and the critical Bronze Age trade networks in copper and tin that funded the empire. They explore the Battle of Kadesh against Egypt, the diplomatic archives at Bogazkoy, and the destruction layers at Hattusa that show a civilization that simply…
The Mongol Empire's Fracture: Why the Yassa Law Could Not Hold
The Mongol Empire under Genghis Khan was held together by a single legal code: the Yassa. This episode explores how the Yassa created unity, why it was abandoned after Genghis's death, and how its collapse enabled the empire's fragmentation into warring khanates. We follow the story of Genghis's successor Ögedei, the rise of Kublai Khan, and the bitter civil war between Arigh Böke and Kublai that shattered Mongol solidarity. We also examine the Yassa's forgotten influence—from its ban on blood…
When Gold Turned to Sand: Mali's Collapse Under Mansa Musa's Heirs
In this episode of Why Every Great Empire Eventually Falls, Lucas and Luna explore the spectacular rise and unraveling of the Mali Empire, one of the wealthiest states of the medieval world. They focus on the reign and aftermath of Mansa Musa, whose legendary 1324 hajj to Mecca showered so much gold across Cairo that it crashed the city's economy for a decade. But that golden moment masked deep fractures: an unwieldy succession system that produced weak rulers, the erosion of centralized…
The Empire That Died of Progress: Rome's Antonine Plague
This episode of Why Every Great Empire Eventually Falls takes a deep dive into one of the ancient world's most devastating pandemics: the Antonine Plague of 165–180 CE. Lucas and Luna explore how the Roman Empire's very success — its trade routes, dense urban centers, and military campaigns — created the perfect conditions for a deadly pathogen to spread from the east to the heart of the Mediterranean. They follow the journey of the plague from Seleucia on the Tigris, where Roman soldiers…
The Sikh Empire's Fall: Betrayal and the British
In this episode of Why Every Great Empire Eventually Falls, Lucas and Luna explore the dramatic collapse of the Sikh Empire under Maharaja Ranjit Singh's successors. After Ranjit Singh's death in 1839, a decade of internal strife, assassinations, and court intrigue weakened the Khalsa army. The British East India Company exploited these fractures, leading to the First and Second Anglo-Sikh Wars. Lucas recounts the pivotal battles of Mudki, Ferozeshah, and Sobraon, where Sikh generals like Sham…
How the Incan Quipu Became the Empire's Secret Weapon
In this episode, Lucas guides Luna through the fascinating story of the Incan quipu, the knotted-cord record-keeping system that was far more than a simple accounting tool. They explore how quipus encoded everything from taxes and census data to historical narratives, military logistics, and possibly even poetry. Lucas explains the role of the quipucamayocs, the specialized bureaucrats who tied and read these cords, and how the Spanish conquest sought to destroy quipus as a threat to colonial…
The Fall of the Vijayanagara Empire: When Betrayal Toppled a Hindu Kingdom
In 1565, the Vijayanagara Empire, one of the wealthiest and most powerful kingdoms in Indian history, collapsed after a single, devastating battle. Lucas and Luna explore the rise of this Hindu empire under Krishnadevaraya, the crucial role of the Deccan Sultanates, and the fateful Battle of Talikota where internal betrayal—led by the Muslim commanders Gilani brothers—sealed Vijayanagara's doom. They discuss the empire's sophisticated administration, its capital Hampi, and how the aftermath…
When the Empire's Army Turns on Itself: Mutiny and the Mughal Collapse
The Mughal Empire didn't fall to a single invader—it rotted from within. In this episode, Lucas and Luna explore one of the most overlooked causes of imperial collapse: when the army stops obeying. The Mughal military, once the most feared in India, became a bloated, factionalized force that fought for paymasters rather than emperors. We focus on the 18th century, when Aurangzeb's long Deccan wars exhausted the treasury, and his successors faced mutinies, desertions, and the rise of private…
The Fall of the Mughal Empire: Bureaucracy, Rebellion, and the Raj
In this episode, Lucas and Luna explore the fall of the Mughal Empire, focusing on the reign of Aurangzeb and the empire's slow unraveling. They discuss how Aurangzeb's religious orthodoxy alienated Hindu allies, the costly Deccan campaigns that drained the treasury, and the rise of Maratha power under Shivaji. The conversation touches on the mansabdari system's corruption, the jagirdari crisis, and the role of Nadir Shah's invasion in 1739. Lucas explains how the British East India Company…
The Fatal Hubris of the Khmer Empire's Water System
Lucas and Luna explore how the Khmer Empire's vast water management network—the intricate system of canals, reservoirs, and barays that made Angkor possible—ultimately became its undoing. They trace the rise from Jayavarman II's founding in 802 CE through the massive constructions under Suryavarman II and Jayavarman VII, then pivot to the slow-motion collapse. New research combining tree-ring data, satellite imagery, and canal sediment cores reveals that the system's very complexity made it…
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