The ‘one who is awake’, was a human being who discovered and taught others a way to realize their innate potential for awakening in a chain of teachings that continue to the present day.
Siddhārtha Gautama was a spiritual teacher from ancient India and the founder of Buddhism and is known as Buddha. It is generally accepted by the majority of historians that he lived approximately from 563 BCE. to 483 BCE.
Buddha can also refer to an enlightened being.