How Old Is Hinduism?

Widely considered to be the world’s oldest living religion, Hinduism might have gotten its start some 5,000 years ago. However, pinning down the religion’s exact age is no simple matter. Unlike other major religions such as Christianity and Islam, Hinduism has no single founder, prophet or teacher; it has no fixed founding date or singular sacred text to mark its beginning.

Further complicating matters, scholars typically describe Hinduism as an evolving religious tradition—rather than a single, distinct religion—because it developed organically across the Indian subcontinent over several thousand years and encompasses an enormous variety of religious systems, beliefs and practices.

The earliest roots of Hinduism might trace back to the Indus Valley Civilization (3300–1300 B.C.), one of the world’s earliest cradles of civilization, alongside Mesopotamia and Egypt. Located in the basin of the Indus River that flows through present-day Pakistan, the Indus Valley Civilization is also known as the Harappan culture, named after one of its two urban centers: Harappa and Mohenjo-daro.

In these Bronze Age cities, archaeologists have found various artifacts like seals, figurines and symbols that might point to the origins of Hinduism. This includes depictions of figures seated in yogic positions, stone and bronze sculptures of animals and trees, terracotta female figures suggestive of fertility goddesses and phallic symbols similar to those associated with the Hindu god Shiva.

Archaeologists have also found evidence of ritual bathing and animal sacrifice in Harappan culture, which were important activities throughout the later Vedic period of India. However, key elements of Harappan culture—such as its still-undeciphered writing system—limit our understanding of their beliefs.

The clearest textual foundation for Hinduism comes from the Vedic period (1500–500 B.C.). During this time, Indo-Aryan people migrated to the Indus Valley and became a dominant cultural force in the region. Over time, they composed the Vedas (meaning “knowledge” in Sanskrit), a collection of texts and hymns that describe deities, mythologies and rituals, including sacrifices. The Rigveda (or Rig Veda) is the oldest and most important part of the collection and stands among the oldest religious texts still used today.

The philosophies of Hinduism continued to develop through other Vedic texts. The last of these were the Upanishads (also called Vedanta, “the end of Veda”), written in the form of a dialogue between a student and teacher. The “Upanishads” introduced concepts central to the classical Hindu period (500 B.C. to A.D. 500), such as samsara (the endless cycle of birth and rebirth) and karma (how actions conducted in a lifetime affect future lifetimes).

Based on the Vedic period alone, scholars often estimate that Hinduism is at least 3,500 years old. However, it is best understood not as originating from a single source but shaped by multiple cultures over time.