Hinduism is one of the world's oldest religions, emerging over 5,000 years ago out of the early cultures of the Indus River valley, in modern day Pakistan.
There is no single founder or event that “began” Hinduism. It is a practice of rituals and lifestyle choices based on a universal, eternal soul called Brahman. Brahman created everything, and is present in everything, including other gods and heroes, and in the cycle of life.
Hindus believe that the soul passes through an endless cycle of birth, death, and rebirth. The form of rebirth is always dependent on Karma, or how the previous life was lived.