The Vedas are called "Shruti" (that which is heard/revealed); the Smritis (law books, epics) are considered human-composed tradition.
The Rigveda has 10 Mandalas and 1,028 hymns; it is the oldest literary text of the Indo-European language family.
The term "Arya" originally denoted a linguistic/cultural identity, not a race.
The horse-centred Aryan migration theory is now generally described by scholars as an in-migration/diffusion rather than a single "invasion."
Panini's Ashtadhyayi systematised Sanskrit grammar around the 5th century BCE and remains a landmark in linguistics.
The Barabar Caves (Bihar), gifted by Ashoka to the Ajivika sect, are the earliest examples of rock-cut architecture in India.
The term "Mahajanapada" literally means "great foothold of a tribe/people."
Vaishali (in the Vajji confederacy) is considered one of the world's earliest examples of a republic (gana-sangha).
Chanakya's Arthashastra discusses seven pillars of the state (Saptanga theory): Swami (king), Amatya (ministers), Janapada (territory/people), Durga (fort), Kosha (treasury), Danda (justice/force), and Mitra (ally).
The term "Dhamma" as used by Ashoka is broader than the religious "Dharma" — it denotes a universal ethical code of conduct for all subjects regardless of religion.
The Amaravati School of Art flourished under the Satavahanas in the lower Krishna valley.
The Nalanda Mahavihara is recognised today as a UNESCO World Heritage Site.
The Gupta period is often called the "Golden Age" of ancient India due to advances in science, art, and literature, though this label has been critiqued for downplaying regional and social inequities of the period.
Aihole is sometimes called the "cradle of Indian temple architecture" due to the variety of early experimental temple forms found there.
The Pallava script is considered an important ancestor of several Southeast Asian scripts, reflecting the spread of Indian culture via maritime trade.

(End of Ancient India — final word count approx. 15 pages of core narrative plus practice material; use alongside the Historical Timelines file for chronology drills.)