India.
Hinduism started in India, and is more ancient than Buddhism. Buddhism also started in India, but spread to china.
Hinduism started in ancient India and part of today called Pakistan in the Indus Valley (which was much larger than the India of today).
Hinduism is one of the Dharmic / Indian Religions and it started in India.
Many emperors during middle ages spred Hinduism Outside of India. Hinduism was born and started in India.
Nobody really knows when Hinduism started, but we have artifacts dating back to about 28,500 b.c.e. so it started at least then, but probably earlier. It started in ancient India (which was much larger than the India of today).
Hinduism & Buddhism
hinduism
Hinduism started about 4000 years ago in circa 2000 B.C., and it started somewhere in India.
Judaism started in Canaan but it is present day Israel. Hinduism started in India. Buddhism started in India also. Christianity started in Israel. Islam started in Mecca.
Hinduism started in India & indus valley. So people of India preserved Hinduism as their Religion.
Hinduism and buddism