The word 'empire' comes from the Latin 'imperium', which means 'supreme power'. An empire is a collection of smaller kingdoms or territories over which a powerful ruler exerts power, often after waging war. The smaller territories still had their own rulers, but they were all tributaries to the emperor, who ruled from a capital — usually a major centre of economic and administrative power.

Military campaigns are costly — soldiers must be fed, clothed, equipped; elephants and horses cared for. All this requires considerable economic power. Economic activity — production and trade — is therefore one of the keys to maintaining an empire.

Fig. 5.5 Some important trade routes from about 500 BCE onward and major cities. Note the Uttarapatha (purple/north) and Dakṣhiṇapatha (yellow/south) routes.

Textiles, spices, agricultural produce, luxury items (gems, handicraft products), and various animals. Many Indian goods travelled to distant countries by land or sea.

• Guilds were powerful associations of traders, craftsmen, moneylenders or agriculturists
• A guild had an elected head and executive officers with ethical qualities
• They brought together people as collaborators rather than competitors
• An ancient text: "Cultivators, traders, herdsmen, moneylenders, and artisans have authority to lay down rules for their respective classes" — guilds had autonomy to create their own internal rules; the king was not to interfere
• Guilds spread over large parts of India and endured for centuries — an excellent example of the self-organising abilities of Indian society

The period between the 6th and 4th century BCE was one of profound change in north India. One of the sixteen mahājanapadas — Magadha (modern-day south Bihar) — rose in importance and set the stage for India's first empire.

Fig. 5.6 An elaborate panel from the Sanchi Stūpa depicting soldiers riding elephants, horses, or on foot, waging battle and laying siege to Kusinārā (today Kushinagar) to recover relics of the Buddha.

Around the 5th century BCE, Mahāpadma Nanda rose to prominence in Magadha and founded the Nanda dynasty. He unified many smaller kingdoms and extended his empire across eastern and northern India. He began issuing coins, demonstrating his economic power.

Fig. 5.7 A punch-marked silver coin of Mahāpadma Nanda — evidence of the Nanda dynasty's economic power and use of coinage in trade

Fig. 5.12 The Nanda Empire — capital at Pāṭaliputra, extending across eastern and northern India. Note the cities like Mathurā, Ujjayinī, Vidiśhā, Vāranasi, and Tāmralipti.

While events unfolded in Magadha, the northwestern region was home to smaller kingdoms including the Pauravas, led by King Porus.

Fig. 5.9 & 5.10 Alexander's Empire and route (left map) and his route into India through Punjab, Sindh and coastal retreat (right map). The statue represents Alexander — a young and powerful Greek king from Macedonia.

Timeline Alexander's India campaign (327–325 BCE) and retreat; his death in Babylon at age 32 (324–323 BCE). His empire was divided among generals and satraps.

Around 321 BCE, just a few years after Alexander left India, the Maurya Empire was founded by Chandragupta Maurya. It quickly absorbed the Nanda empire's territories and expanded beyond.

Fig. 5.14 Megasthenes in the court of Chandragupta Maurya — a 20th-century painting by Asit Kumar Haldar. Megasthenes wrote about India in his book Indika.

Fig. 5.13 The Maurya Empire at its height — from the northern plains to the Deccan plateau, extending from Kāndhār in the northwest to present-day Bangladesh in the east. Main capital: Pāṭaliputra. Regional capitals: Takṣhaśhilā, Ujjayinī, Suvarnagiri, Tosālī.

Kauṭilya had a clear vision of how a kingdom (rājya) should be established and managed. His famous work Arthaśhāstra (literally, 'the science of governance and economics') listed directives in defence, economics, administration, justice, urban planning, agriculture and people's welfare.

Fig. 5.15 Kauṭilya's Saptānga — the seven essential parts/limbs of a kingdom: the King (swāmi), Councillors (amātya), Territory (janapada), Fortifications (durga), Treasury (koṣha), Army (daṇḍa), and Allies (mitra).

Fig. 5.16 Aśhoka visiting the Ramagrama stūpa in Nepal — from a carved panel at the Sānchi stūpa. This depicts Aśhoka in a chariot surrounded by attendants.

Aśhoka (reigned 268–232 BCE), Chandragupta's grandson, is one of the most remarkable rulers in world history. He inherited a vast empire and further expanded it to cover almost the entirety of the Indian subcontinent — except the southernmost region — including present-day Bangladesh, Pakistan, and parts of Afghanistan.

Historians have called Aśhoka a 'great communicator' since he issued edicts engraved on rocks or pillars across his empire, encouraging people to follow dharma.

Fig. 5.17 A few of the many Aśhokan edicts across the Subcontinent. Major Rock Edicts (red circles): Kandahar, Mansehra, Kalsi, Girnar, Dhauli. Minor Rock Edicts (blue triangles): Bairat, Maski, Brahmagiri. Pillar Edicts (orange diamonds): Meerut, Kaushambi. Minor Pillar Edicts (green diamonds): Sarnath, Sanchi, Lumbini, Barabar Hills. Cave Inscription (purple star): Barabar Hills.

Fig. 5.18 (Left) A reproduction of a part of Aśhoka's rock edict at Girnar, Gujarat — inscribed in Brahmi script. (Right) Detail of the Topra Aśhokan pillar at Feroz Shah Kotla, Delhi — showing both Brahmi and later Sanskrit inscriptions.

Cities like Pāṭaliputra were bustling centres of governance and commerce — with palaces, public buildings, and well-planned streets. A well-organised taxation system and brisk trade kept the treasury strong.

Fig. 5.29.1 & 5.29.2 (Left) A hoard of Mauryan punch-marked coins — evidence of the advanced monetary economy. (Right) A punch-marked coin of Aśhoka bearing symbols including the dharmachakra.

The Maurya empire continued for half a century after Aśhoka's death. His successors were unable to hold it together, and many smaller kingdoms broke off. Around 185 BCE, the Maurya Empire ended.

• Temptation for regions to become independent — especially when tribute demands increased due to long military campaigns or drought
• A powerful emperor followed by one perceived to be weak → local kings stop paying tribute
• Larger the empire, more difficult to hold together — far-off territories split away first
• Economic crises caused by natural calamities (drought or floods) can shake an empire's structure

On one hand: Empires bring political unity (as the Mauryan Empire did to almost the entire Subcontinent) and reduce warfare among smaller kingdoms. A well-managed empire can lead to greater prosperity.

On the other hand: Empires are almost always established through war and maintained through force and repression — making them fragile at their core and unstable over time.

Fig. 5.30 Chapter Timeline: From Mahājanapadas (before 600 BCE) → Ajātaśhatru (~500 BCE) → Mahāpadma Nanda founding the Nanda dynasty → Alexander's invasion → Chandragupta Maurya founding the Maurya Empire (~321 BCE) → Aśhoka (~268–232 BCE) → End of Maurya Empire (185 BCE).