The Vedic period (or Vedic age) was a period in history during which the Vedas, the oldest scriptures of Hinduism, were composed. The time span of the period is uncertain. Philological and linguistic evidence indicates that the Rigveda, the oldest of the Vedas, was composed roughly between 1700 and 1100 BCE, also referred to as the early Vedic period. The end of the period is commonly estimated to have occurred about 500 BCE, and 150 BCE has been suggested as a terminus ante queue for all Vedic Sanskrit literature.
Rig Vedic society was relatively egalitarian in the sense that a distinct hierarchy of socio–economic classes or castes was absent. However, political hierarchy was determined by rank, where rajan stood at the top and dasi at the bottom. The words Brahamana and Kshatriya occur in various family books of the Rig Veda, but they are not associated with the term varna. The words Vaishya and Shudra are absent.
The mode of worship was the performance of sacrifices (Yajna) which included the chanting of Rigvedic verses (see Vedic chant), singing ofSamans and 'mumbling' of sacrificial mantras (Yajus).