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World Empires · Episode 04 · 322–185 BC

The Maurya Empire of India

Chandragupta Maurya unites northern India in the power vacuum left by Alexander, makes peace with Seleucus for 500 elephants, and his grandson Ashoka conquers Kalinga, regrets it, and carves edicts of dhamma across the subcontinent while Buddhist missions travel abroad. Episode 04 of the World Empires series.

Interactive 3D film5 min322 to 185 BCPublished 2026-10-13

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Prologue

World Empires · Episode 04

The Maurya Empire

India’s first great empire.

In the 300s BC, northern India was divided among many kingdoms. The richest was Magadha, on the Ganges, ruled by the Nanda dynasty from Pataliputra, today’s Patna.

In 326 BC, Alexander’s army reached the Indus and turned back. Into the power vacuum it left stepped a young man named Chandragupta.

Prologue · Episode 04 of the World Empires series

India before the Mauryas

The Ganges plain had fertile soil, iron and growing cities. Magadha, in today’s Bihar, had become the leading kingdom under the Nanda dynasty. In the north-west, Alexander’s brief invasion left Greek garrisons and local rulers in disarray.

Grey outlines show other powers of the time. Outlines are approximate.

Sources: Wikipedia: Maurya Empire

Chapter I · Chandragupta

Chapter I · c. 322 BC

Chandragupta and Chanakya

A young founder and a ruthless teacher.

Around 322 BC, Chandragupta Maurya overthrew the Nanda king and took Pataliputra. He then seized the Punjab from Alexander’s successors.

Tradition says his adviser was Chanakya, also called Kautilya, the author of the Arthashastra, a manual on statecraft, spies and taxes.

Most scholars think the Arthashastra was compiled or expanded later, but it shows how Indian rulers thought about running a state.

Chapter I · Step 1

Chandragupta and Chanakya

Chandragupta
c. 322–298 BC
Capital
Pataliputra
modern Patna

The exact founding date is uncertain: sources give 322 or 321 BC.

Sources: Wikipedia: Maurya Empire

Chapter I · 305–303 BC

Peace with Seleucus

Land for elephants.

Alexander’s general Seleucus tried to reclaim the Indus lands. Instead, around 303 BC, he made peace with Chandragupta.

The Mauryas gained Arachosia and Gandhara, in today’s Afghanistan and Pakistan. Seleucus received 500 war elephants, and the two families made a marriage alliance.

A Greek ambassador, Megasthenes, lived at Pataliputra and described a vast walled city and an enormous army, though his numbers may be exaggerated.

Chapter I · Step 2

Peace with Seleucus

Elephants to Seleucus
500
c. 303 BC
Army (Megasthenes)
600,000 infantry, 9,000 elephants
an ancient claim, probably inflated

The elephants helped Seleucus win the Battle of Ipsus in 301 BC (Episode 03).

Sources: Livius: chronology of the Diadochi; Wikipedia: Maurya Empire

Chapter I · 298–272 BC

Bindusara

The empire pushes south.

Chandragupta’s son Bindusara extended Maurya rule into the Deccan plateau of central India.

By the end of his reign, only Kalinga on the east coast, and the Tamil lands of the far south, stood outside the empire.

Chapter I · Step 3

Bindusara

Reign
298–272 BC
Provincial centres
Taxila, Ujjain, Tosali, Suvarnagiri
Sources: Wikipedia: Maurya Empire

Chapter II · Ashoka

Chapter II · c. 261 BC

The Kalinga war

A conquest that changed the conqueror.

Bindusara’s son Ashoka was crowned around 268 BC. In about his eighth year, he invaded Kalinga, in today’s Odisha.

In his own words, carved later in stone, 150,000 people were deported, 100,000 were killed, and many more died.

Ashoka declared that he felt deep remorse. He said that from then on, the only true conquest was conquest by dhamma: moral law.

Chapter II · Step 4

The Kalinga war

Ashoka’s 13th Major Rock Edict is one of the few records in which an ancient ruler expresses regret for a war he won.

Deported
150,000
Rock Edict XIII
Killed
100,000
“and many times that number died”
Sources: Wikipedia: Kalinga War; World History Encyclopedia: Edicts of Ashoka

Chapter II · 260–232 BC

Rule by dhamma

Messages carved in stone across an empire.

Ashoka had his messages carved on rocks and tall polished pillars across the empire, in local languages and scripts, even Greek and Aramaic near Kandahar.

They urged honesty, kindness to animals, respect for all religious groups, and announced wells, rest houses and medical care for people and animals.

At its height the empire covered most of the subcontinent, by estimates between 3.4 and 5 million square kilometres.

Chapter II · Step 5

Rule by dhamma

Inscriptions
33
incl. 14 Major Rock Edicts
Peak area
~3.4–5M km²
c. 250 BC; estimates vary
Languages and scripts
Prakrit in Brahmi and Kharosthi; Greek and Aramaic at Kandahar
Sources: World History Encyclopedia: Edicts of Ashoka; Wikipedia: Maurya Empire; Wikipedia: List of largest empires

Chapter II · c. 250 BC

Buddhism travels

Missions from Ashoka’s court spread the Buddha’s teaching.

According to Buddhist chronicles, Ashoka supported a great council of monks, and sent missions to neighbouring lands.

His son Mahinda is said to have brought Buddhism to Sri Lanka. Sri Lankan chronicles also say monks named Sona and Uttara went to a “Golden Land”, Suvarnabhumi.

Thailand and Myanmar both claim that land. Historians note that no Southeast Asian record mentions the story before the second millennium AD, so it remains a tradition.

Chapter II · Step 6

Buddhism travels

Ashoka’s own edicts mention sending envoys of dhamma to Greek kings in the west and to the south. The detailed stories of missions to Sri Lanka and Suvarnabhumi come from later Sri Lankan chronicles such as the Mahavamsa (5th century AD).

Thai tradition links Suvarnabhumi with central Thailand (for example Nakhon Pathom); Myanmar tradition with Thaton in the Mon country. Its marker here is deliberately vague.

Sources: Revire, “Facts and Fiction: the myth of Suvaṇṇabhūmi”, TRaNS 2018; World History Encyclopedia: Edicts of Ashoka

Chapter III · Decline and memory

Chapter III · 232–185 BC

A swift decline

Within fifty years of Ashoka’s death, the empire was gone.

After Ashoka died around 232 BC, the empire was divided among weaker successors, and distant provinces broke away.

In 185 BC, according to later accounts, the general Pushyamitra Shunga killed the last Maurya king during a military review, and founded his own dynasty.

Some later writers blamed Ashoka’s pacifism. Most historians point instead to an over-centralised state that was hard to hold together.

Chapter III · Step 7

A swift decline

  • c. 232 BC Death of Ashoka
  • c. 200 BC Greco-Bactrian kings push into the north-west
  • 185 BC Pushyamitra kills Brihadratha; Shunga dynasty
Sources: Wikipedia: Maurya Empire

Chapter III · 1837

A forgotten emperor returns

For two thousand years, India forgot Ashoka’s inscriptions.

Over the centuries, the Brahmi script of the edicts became unreadable, and Ashoka survived mostly in Buddhist legend.

In 1837, James Prinsep, a British official in Calcutta, deciphered Brahmi, and Ashoka’s own words could be read again.

When India became a republic, it chose the lion capital from Ashoka’s pillar at Sarnath as its national emblem, and his wheel of dhamma for its flag.

Chapter III · Step 8

A forgotten emperor returns

  • 1837 James Prinsep deciphers Brahmi
  • 1950 The Sarnath lion capital becomes India’s national emblem
  • Flag The 24-spoke Ashoka Chakra at the centre of India’s flag
Sources: World History Encyclopedia: Edicts of Ashoka; Wikipedia: Maurya Empire

Epilogue

Epilogue

The emperor who regretted

A short-lived empire with a very long shadow.

The Maurya Empire lasted about 140 years. But it was the first to unite most of South Asia, and its ideas outlived it.

Ashoka’s support helped Buddhism grow from a regional faith into a religion of Sri Lanka, Southeast Asia and, later, East Asia.

Next: China, where in 221 BC the Qin dynasty unified the warring states.

Epilogue

The emperor who regretted

  • c. 322 BC Empire founded
  • c. 261 BC Kalinga war
  • c. 250 BC Edicts and missions
  • 185 BC End of the dynasty
The series
  1. 00The Rise and Fall of Empires (overview)
  2. 01The First Empires: Mesopotamia
  3. 02Egypt of the Pharaohs
  4. 03Persia and Alexander
  5. 04 The Maurya Empire of India (this film)
  6. 05China Unified: Qin and Han
  7. 06 Rome (coming soon)
  8. 07 The Islamic Caliphates (coming soon)
  9. 08 The Khmer Empire of Angkor (coming soon)
  10. 09 The Mongol Empire (coming soon)
  11. 10 The Ottoman Empire (coming soon)
  12. 11 The Aztec and Inca Empires (coming soon)
  13. 12 The Age of Sea Empires (coming soon)
  14. 13 The End of Empires (coming soon)

The still images on the chapter cards are AI-generated illustrations. Outlines are approximate.

Sources: Wikipedia: Maurya Empire; World History Encyclopedia: Edicts of Ashoka; Wikipedia: Kalinga War