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Lineage: Muṇḍaka & Praśna Upaniṣads, Bṛhadāraṇyaka vaṁśas, Purāṇas, Advaita paramparā.
Science notes follow standard histories (Plofker, Mathematics in India; the Saṁhitās of Suśruta & Charaka; Āryabhaṭīya).
Map geography is evocative, not cartographic.