1500 BC-Vedic period

The Vedic period (or Vedic age) (c. 1500 – c. 500 BCE) was the period in Indian history during which the Vedas, the oldest scriptures of Hinduism, were composed.^{[note 1]}

During the early part of the Vedic period, the Indo-Aryans settled into northern India, bringing with them their specific religious traditions. The associated culture (sometimes referred to as Vedic civilisation^{[note 2]}) was initially a tribal, pastoral society centred in the northwestern parts of the Indian subcontinent; it spread after 1200 BCE to the Ganges Plain, as it was shaped by increasing settled agriculture, a hierarchy of four social classes, and the emergence of monarchical, state-level polities.^[3][4] Scholars consider Vedic civilisation to have been a composite of the Indo-Aryan and Harappan cultures.^[5]

The end of the Vedic period witnessed the rise of large, urbanised states as well as of shramanamovements (including Jainism and Buddhism) which challenged the Vedic orthodoxy.^[6] Around the beginning of the Common Era, the Vedic tradition formed one of the main constituents of the so-called "Hindu synthesis".^[7]

https://en.wikipedia.org/wiki/Vedic_period