Ancient India — Indus Valley & Vedic Age

Great Bath = Mohenjo-Daro (~12×7 m; baked bricks coated with bitumen). One of the earliest public water tanks in the world. Site memory: Lothal = dockyard; Kalibangan = ploughed field; Harappa = granaries; Dholavira = water reservoir system (UNESCO 2021).

After enlightenment at Bodh Gaya, Buddha delivered his first sermon at Sarnath (Deer Park, near Varanasi) — called Dhammachakkapavattana. Four Buddhist sites: Lumbini = birth; Bodh Gaya = enlightenment; Sarnath = first sermon; Kushinagar = death.

Ahimsa (non-violence) = cornerstone of Jainism and most important of Mahavira's Five Vows. Jains sweep paths before walking, wear face masks to avoid inhaling insects. This principle profoundly influenced Mahatma Gandhi.

First Buddhist Council = held at Rajgir in the Sattapanni Cave, shortly after Buddha's death (~483 BCE), under patronage of Ajatashatru. Four Buddhist councils: Rajgir (Ajatashatru) → Vaishali (Kalashoka) → Pataliputra (Ashoka) → Kashmir (Kanishka).

Lothal (Gujarat) = only Indus Valley site with evidence of a dockyard — a rectangular basin (37×22 m) showing maritime trade with Mesopotamia. Mohenjo-Daro = Great Bath; Kalibangan = ploughed field; Harappa = granaries.

IVC script = ~400+ distinct signs; written right to left and remains completely undeciphered — biggest unsolved mystery of ancient South Asian history. Not related to Brahmi or cuneiform. No bilingual inscription found.

Yajurveda = primarily deals with sacrificial rituals and prose formulas — including Ashvamedha (horse sacrifice), Rajasuya (royal consecration). Rigveda = hymns of praise; Samaveda = musical chants; Atharvaveda = spells, charms, everyday knowledge.

Upanishads = also called Vedantas ('end of the Vedas') — they form the concluding philosophical portions discussing Brahman, Atman, and their relationship. Aranyakas = 'forest texts' (between Brahmanas and Upanishads); Brahmanas = ritual texts explaining Vedic sacrifices; Sutras = concise aphoristic texts.

Kalibangan = located in Rajasthan (on the Ghaggar river, identified with ancient Saraswati). Known for world's oldest ploughed field and fire altars suggesting Vedic-like rituals. Harappa = Punjab (Pakistan); Mohenjo-Daro = Sindh (Pakistan); Lothal and Dholavira = Gujarat; Rakhigarhi = Haryana.

Purusha Sukta (Hymn of the Cosmic Being) = found in the Rigveda (10th Mandala, 90th hymn). Describes four Varnas emerging from the cosmic sacrifice: Brahmin from mouth, Kshatriya from arms, Vaishya from thighs, Shudra from feet.

Mohenjo-Daro = located in present-day Pakistan (Sindh province) on the Indus River. Harappa = Punjab, Pakistan. Lothal, Kalibangan, Dholavira, Rakhigarhi = in India. Most major IVC sites went to Pakistan after 1947 partition.

Anekantavada (many-sidedness) = Jain doctrine that truth and reality can be correctly perceived from many different standpoints — no single viewpoint is completely true. Unique to Jainism; one of its most sophisticated philosophical contributions. Related to Syadvada (conditional predication).

Dholavira (Gujarat) = UNESCO World Heritage Site (July 2021). Famous for its elaborate water conservation and reservoir system in an arid region. Also has the largest IVC site in India and a unique three-part city layout. Rakhigarhi (Haryana) = largest IVC site overall; Mohenjo-Daro = Great Bath; Lothal = dockyard.

Megaliths (Greek: mega = large, lithos = stone) = burial monuments made of large stones found extensively in South India (Deccan, Kerala, Tamil Nadu) from ~1000 BCE. Types include dolmens, cairns, and stone circles. They contain skeletal remains and iron tools, suggesting a pastoral, iron-using culture predating major South Indian kingdoms.

Ahimsa = central to both Jainism (most important vow) and Buddhism (first precept: not to take life). Both Mahavira and the Buddha rejected Vedic animal sacrifices. Vedic Brahmanism practised animal sacrifice; Bhakti movement = much later (medieval period).

Battle of Hydaspes (on the Jhelum River) = between Alexander the Great and Porus (Puru) — the Paurava king of Punjab. Though Alexander won, Porus fought so bravely that Alexander restored his kingdom and made him an ally. After this battle, Alexander's troops refused to march further east (fearing the Nanda Empire).

Megasthenes = Greek ambassador sent by Seleucus I Nicator to the court of Chandragupta Maurya at Pataliputra (~302 BCE). He wrote Indica — a description of India, its society, geography, and governance. Described Pataliputra as 'the greatest city in India.' Ashoka = Chandragupta's grandson; Samudragupta and Kanishka = much later.

Arthashastra = written by Kautilya (Chanakya or Vishnugupta) — minister who guided Chandragupta Maurya. Covers statecraft, economics, military strategy, espionage. Rediscovered in 1905 after 1,500 years. Aryabhata = mathematics/astronomy; Kalidasa = Sanskrit literature; Ashoka = rock edicts.

Pali belongs to the Indo-Aryan (Prakrit) language family — a Middle Indo-Aryan language derived from Sanskrit but simpler and more accessible. The Buddhist Theravada canon (Tipitaka) was written in Pali. Dravidian = South Indian language family (Tamil, Telugu, Kannada, Malayalam).

Ashoka's Dhamma (righteousness) = non-violence, religious tolerance, respect for parents and teachers, truthfulness, and welfare of all beings. After the Kalinga War (261 BCE), Ashoka abandoned military conquest in favour of Dhamma. His edicts = first major historical inscriptions in India.