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Siddhārtha Gautama (Sanskrit सिद्धार्थ गौतम, Pali Gotama Buddha) was a spiritual teacher from ancient India and the historical founder of Buddhism. He is universally recognized by Buddhists as the Supreme Buddha of our age. The time of his birth and death are uncertain; most modern historians date his lifetime from 563 BCE to 483 BCE, though some have suggested a date about a century later than this.
Gautama, also known as Sakyamuni or Shakyamuni (“sage of the Shakyas”), is the key figure in Buddhism, and accounts of his life, discourses, and monastic rules were summarized after his death and memorized by the saṅgha. Passed down by oral tradition, the Tripiṭaka, the collection of discourses attributed to Gautama, was committed to writing about 400 years later.