The Hindu Sacred Book is referred to as the Veda, which is a Sanskrit word meaning 'KNOWLEDGE'. It is a collection of ancient religious texts written in Vedic Sanskrit, which is an ancient Indo-Aryan language. The Veda is composed of four collections of hymns and other texts, known as the Rigveda, Yajurveda, Samaveda, and Atharvaveda. These texts are believed to have been composed between 1500 BCE and 500 BCE, and are considered to be some of the oldest religious texts in the world.