Final answer:
Hinduism originated from the overlapping beliefs and cultural interactions in the Indus River Valley some 4,500 years ago, making it the oldest major religion in the world with diverse traditions and no single founder.
Step-by-step explanation:
Hinduism originated as a result of the overlapping beliefs and traditions of various groups in the region of the Indus River Valley, around 4,500 years ago in modern-day northwest India and Pakistan. It did not originate from a single teacher or as a sect of another religion but developed over time from many traditions. Known as the world's oldest religion, Hinduism saw its evolution during the periods after the Vedic Age and in response to the influence of Buddhism and other cultural interactions in ancient India. This complex synthesis, which included divinities and concepts from other religious traditions, made Hinduism accessible and appealing to a wide variety of people in India.