Upanishadic intellectual tradition

Timeline

1. c. -800–-600Forests of Kuru and Panchala · IndiaEarly texts such as the Chandogya Upanishad and Brihadaranyaka Upanishad appeared, exploring in dialogue form the identity of Brahman and Atman, marking Indian philosophy's shift from ritualism to introspective speculation.
2. c. -600–-500Middle Ganges region · IndiaLate Upanishadic texts were completed, seeds of Yoga, Samkhya, and other thought emerged, and philosophical competition and mutual learning with the contemporaneous rise of Buddhism and Jainism laid the foundation for the diversification of South Asian thought in the Axial Age.