Thirteen empires. No ranking, no winners — the Bureau doesn't rank history. What follows is a collection: thirteen realms that bent the arc of the world, each told in its own right, arranged oldest to youngest.
The story in images
The collection in images
About this collection
No ranking, no scorecard, no winners: the Bureau doesn't rank history. The thirteen entries below are arranged oldest to youngest, each told in its own right. They are here for the same reason — each of them bent the arc of the world: in territory, in the share of humanity ruled, in longevity, or in the imprint left behind in law, language, faith, and borders. Some are obvious; some, like the horsemen of Marrakech, the world has under-told. Take them as thirteen lenses: thirteen ways a realm could become a world.
Achaemenid Persia, 550–330 BCE
Cyrus the Great founded it in 550 BCE, and within a generation it was the largest empire the world had ever seen. But size was never the Achaemenids' real distinction — share of humanity was. By the reign of Darius, the Persian Empire ruled perhaps two in five of all the humans alive on earth: a proportion of the species no empire before or since has matched. It ran on infrastructure that still reads like a modern state: the Royal Road, a postal relay of mounted couriers, standardized coinage, and satraps — provincial governors — holding a realm from the Indus to the Aegean. Alexander burned Persepolis in 330 BCE and the empire died with shocking speed. And yet its operating system survived its destroyer: the idea of a tolerant, administered, multi-ethnic superstate became the template every later empire copied.
Macedon, 336–323 BCE
In 336 BCE a twenty-year-old inherited his father's army and used it to redraw the map of the known world. In twelve years Alexander of Macedon marched from Greece to the Indus — toppling the Persian Empire, founding some twenty cities that bore his name, and carrying Greek language and thought into Asia as no one had before. He died in Babylon in 323 BCE at thirty-two, his empire fracturing into warring kingdoms almost immediately. And yet the fracture was the point: the Hellenistic world his generals built kept Greek as the language of science, philosophy, and administration from Alexandria to Central Asia for centuries. Twelve years of conquest; two centuries of aftermath.
Roman Empire, 27 BCE – 476 CE
Augustus founded it in 27 BCE; its shadow never left. Rome's distinction is not territory — at about 5 million square kilometres it was a fraction of the Mongols' realm — but imprint, the deepest of any empire in history. Roman law is the skeleton of every legal system from Paris to Buenos Aires; Latin became French, Spanish, Portuguese, Italian, Romanian; Christianity became a world religion inside Rome's borders; and the map of Europe — its cities, its roads, its frontiers — is still Rome's map with the names changed. The western half fell in 476 CE; the eastern half lived on as Byzantium for another thousand years. No empire was ever more thoroughly copied. Rome is not an empire of size. It is an empire of afterlife.
Abbasid Caliphate, 750–1258
The Abbasids moved the capital to Baghdad in 762 and built the greatest knowledge machine the medieval world ever saw. The House of Wisdom paid translators the weight of their books in gold; from that investment came algebra, the algorithm, the hospital, and the star catalogues that later lit the European Renaissance. At its 9th-century peak the caliphate stretched from the Atlantic to the Indus, and Baghdad was the largest city on earth. It ruled for 508 years, and even after its political power faded, its cultural gravity held: the caliph remained the symbolic head of Sunni Islam until the Mongols sacked Baghdad in 1258. The Abbasids' claim rests not on territory but on imprint: the science of the modern world still runs on their foundations.
Moroccan Empire — Almoravid & Almohad, 1040–1269
For two centuries the western Mediterranean answered to Marrakech. The Almoravids, reformers turned conquerors, raised their red city in 1062 and crossed the Strait to hold Al-Andalus and the Maghreb at once; the Almohads who followed pushed the realm from Iberia to the Senegal. The crossing itself began earlier, with a Moroccan: in 711 Tariq ibn Ziyad sailed into Iberia and left his name on Gibraltar, the mountain of Tariq. And in 859, in Fez, Fatima al-Fihri founded Al-Qarawiyyin — the oldest continuously operating university on earth, still teaching today. Smaller than the giants elsewhere in this collection, the Moroccan empire punches above its weight on lasting imprint: the Moors' stone and learning are still written into the face of southern Spain, and the Alaouite dynasty, on the throne since 1666, keeps one of the world's oldest continuous monarchies.
Mongol Empire, 1206–1368
In 1206 a steppe chieftain united the tribes, and within two generations his heirs had built the largest land empire in history — some 24 million square kilometres, from the Pacific to the Danube. The Mongols conquered with terror as infrastructure: cities that resisted were erased so completely that the next city surrendered without a fight. But the deeper story is what came after the terror: the Pax Mongolica, the largest free-trade zone the world had ever seen, stitched together by the best-run postal relay on earth — and it was along those relay routes that gunpowder, printing, and the plague travelled west. The empire fractured into khanates within decades of Genghis Khan's death; by 1368 the Yuan were driven from China. It lasted barely a century and a half as a unity — and yet it connected the world.
Ottoman Empire, 1299–1922
Six hundred and twenty-three years. Founded around 1299 in Anatolia, the Ottomans took Constantinople in 1453 — cannon fire ending the Middle Ages — and built the empire between worlds: Christian Balkans and Muslim Arabia, European infantry and Asian cavalry, all taxed at the bridge between them. At its 17th-century height it held three continents and the holy cities of three faiths, ruled by a sultan who was also caliph. It was an administrative marvel — the millet system letting each faith govern its own affairs — and a military one, until the long 19th-century retreat turned it into the 'sick man of Europe.' In 1922 the sultanate was abolished. The empire is gone; its borders, drawn and redrawn by its fall, still define the map of the modern Middle East and the Balkans.
Spanish Empire, 1492–1898
The first empire on which the sun never set — and the first truly global one. From 1492 the Spanish crown built a realm spanning the Americas, the Philippines, and European battlefields, financed by the silver of Potosí, which paid for it all until the bills came due. For two centuries Spain was the superpower of the early modern world: the peso became the first global currency, Catholicism became a world religion on Spanish ships, and the Columbian exchange rewired the planet's biology. It lasted four centuries, and its imprint is among the most visible in history: half a billion people speak Spanish today, from Madrid to Mexico City to Manila's old stones. Decline was slow — 1898, not a bang but an evaporation.
Mughal Empire, 1526–1857
In 1526, at Panipat north of Delhi, the Central Asian prince Babur — descendant of Timur and of Genghis Khan — destroyed the Sultan of Delhi in a single day with field guns and fast cavalry, and founded the empire that would become the richest state on earth. Under his grandson Akbar the Mughals became a machine of administration and a daring experiment in tolerance — Hindus, Muslims, Jains, Parsis and Jesuits debating at the imperial court — while a quarter of the world's wealth flowed through the treasury. Shah Jahan turned that surplus into marble: the Taj Mahal, a monument to love, became the most famous building on earth. Overreach under Aurangzeb cracked the machine; the British East India Company finished it off in 1857. Three centuries — and proof that the road to global power once ran through Delhi and Agra.
British Empire, 1583–1997
The only empire that ever ruled a quarter of humanity and a quarter of the earth's land — some 35.5 million square kilometres at its 1920s peak, the largest empire in all of history. It began with the planting of flags in 1583 and grew into a global system: the Royal Navy's sea lanes, the City of London's finance, the industrial revolution's factories, and a bureaucracy that ran India — the jewel in the crown — with a few thousand British officials. Its imprint is the air the modern world breathes: the English language, parliamentary government on five continents, common law, the railway, the time zone, the very idea of the global market. It ended not in battle but in negotiation, lowering the flag in Hong Kong in 1997. Four centuries, a quarter of the species, and a language spoken on every shore.
Qing Dynasty, 1644–1912
The Manchus were outsiders who conquered China and then became more Chinese than the Chinese — and under them the empire reached its greatest extent and its greatest population. At its 18th-century peak the Qing ruled some 300 million subjects, the largest population under one government in human history to that point, across a realm stretching from the Pacific to Central Asia. It lasted 268 years, and it produced the high Qing: the Kangxi and Qianlong emperors, the civil service examination at its most refined, porcelain and poetry flooding world markets. Then came the long 19th century: opium, steam, and gunboats. The dynasty that had perfected the imperial machine could not survive the industrial one — and in 1912 the last emperor abdicated, ending two thousand years of imperial China.
Russian Empire, 1721–1917
Peter the Great proclaimed it in 1721, and for nearly two centuries it swallowed a continent whole. From Poland to Alaska, the Russian Empire became the largest contiguous land empire in human history — some 22.8 million square kilometres at its peak, a single realm stretching across eleven time zones. It was not a maritime empire of ports and plantations but a land empire of steppe, forest, and ice, expanded by Cossacks, soldiers, and settlers moving east at a walking pace. And yet for all its size, it remained strangely fragile: serfdom until 1861, defeat by Japan in 1905, and a war machine that could not survive the First World War. In 1917 it collapsed into revolution — a reminder that contiguity is not the same as cohesion.
Imperial Japan, 1868–1945
In 1868 the Meiji Restoration set out to do in decades what took Europe centuries — railways, conscription, compulsory education, heavy industry. By 1905 the new Japan had annihilated the Russian Baltic Fleet at Tsushima, the first time in the modern era an Asian power defeated a European one in a set-piece battle. By early 1942 its empire stretched from the Aleutians to New Guinea — the largest the Pacific had ever seen. But the zenith was real and brief: a first-class military on a second-class resource base, running on imported fuel and borrowed time. Overreach — a bogged-down war in China, then Pearl Harbor and the entry of an industrial America Japan could not match — ended the experiment in 1945. The shortest arc in this collection, and one of the steepest.
Thirteen empires, thirteen different answers to the oldest question in politics: how do you hold the world together, and what does it cost? Argue with the history, not a scoreboard — every entry here is told in its own right, and each could fill a library. The debate is open.