In 1500 BCE, the Aryan people settled into the Indus River Valley of the Indian Subcontinent. Their religious beliefs were built upon sacred texts, called the Vedas. These ancient writings, written in what became known as Vedic Sanskrit; became the core of the Hindu belief system. The term Vedic can be used to describe anything in relation to the Aryan settlers, their religious beliefs, and the language in which their ancient texts were written.