The Vedas are the ancient scriptures or revelation (Shruti) of the Hindu teachings. They manifest the Divine Word in human speech. They reflect into human language the language of the Gods, the Divine powers that have created us and which rule over us. The Vedas are considered the earliest literary record of Indo-Aryan civilization, and the most sacred books of India. They contain spiritual knowledge encompassing all aspects of our life. Vedic literature with its philosophical maxims has stood the test of time and is the highest religious authority for all sections of Hindus in particular and for mankind in general.
Veda means wisdom, knowledge or vision, and it manifests the language of the gods in human speech. The laws of the Vedas regulate the social, legal, domestic and religious customs of the Hindus to the present day. All the obligatory duties of the Hindus at birth, marriage, death etc. owe their allegiance to the Vedic ritual. They draw forth the thought of successive generation of thinkers, and so contain within it the different strata of thought.
There are four Vedas, each consisting of four parts. The primary portion is the mantra or hymn section (samhita). To this are appended ritualistic teachings (brahmana) and theological sections (aranyaka). Finally, philosophical sections (upanishads) are included. The hymn sections are the oldest. The others were added at a later date and each explains some aspect of the hymns or follows one line of interpreting them.
There are four Vedas, the Rig Veda, Sama Veda, Yajur Veda and Atharva Veda. The Vedas are the primary texts of Hinduism. They also had a vast influence on Buddhism, Jainism, and Sikhism. Traditionally the text of the Vedas was coeval with the universe. Scholars have determined that the Rig Veda, the oldest of the four Vedas, was composed about 1500 B.C., and codified about 600 B.C. It is unknown when it was finally committed to writing, but this probably was at some point after 300 B.C.