Question

The religion of Buddhism began after Siddhartha Gautama?

Answer 1

TL;DR from the guy above: After he achieved enlightenment

Answer 2

Buddhism is a faith that was founded by Siddhartha Gautama (“the Buddha”) more than 2,500 years ago in India. With about 470 million followers, scholars consider Buddhism one of the major world religions.

Buddhism. Buddhism, a religion that more than 300 million people currently practice, was founded in northeastern India by Prince Siddhartha in the sixth century B.C. Having achieved enlightenment, he became known as Shakyamuni and preached a path of salvation to his followers.

Buddhism arose in northeastern India sometime between the late 6th century and the early 4th century bce, a period of great social change and intense religious activity. There is disagreement among scholars about the dates of the Buddha's birth and death.

Yes.