Hand-drawn Buddha symbol and buddha chronicle wordmark
Based on the sutras, the Vinaya and later commentaries
About the Sources

For twelve years after the Awakening, only a short verse of the rules was taught

Recorded by two schools

The Vinaya texts of some schools say that for the twelve years after the Awakening the disciples committed no offences, and the Buddha taught his monastic disciples only a short : “Do no evil at all, cultivate all that is good, thoroughly tame your own mind: this is the teaching of the Buddhas”, meaning: do no evil whatever, strive to do all good, subdue your own mind; this is what the Buddhas teach. Only after twelve years, when people began to commit offences, did the Buddha lay down the rules one by one in detail.

Different Accounts

The number of years: the Pātimokkha text of the Chinese Dharmaguptaka Vinaya and the Vinaya and treatises of the Sarvāstivāda (one of the schools of ancient Buddhism) have twelve years; the later commentaries of the Southern tradition and the Chinese Shanjian lü have twenty years; the Chinese Mahāsāṃghika Vinaya says the Sangha was pure for five years after the Awakening, and only afterwards did people gradually begin to commit offences.

More differences between accounts (1)

The Chinese Mūlasarvāstivāda Vinaya says that in the thirteenth year the affair of took place (see the entries on Sudinna under this year and under Year 20 after the Awakening).

Dating

Between Year 1 and Year 12 after the Awakening, the Buddha aged thirty-five to forty-six; the “twelve years” are stated in the canonical texts, and the conversion to years after the Awakening is by the Buddha's age; approximately within these years.

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Research Notes: Reliability, Dating and Sources
How Reliability Is Assessed

Not recorded in the early sutras and Vinayas of any school; found only in the commentaries or later Buddha biographies. Later addition.

Dating Evidence and Precision

Stated in the canonical text (the text itself gives the time); converted from the Buddha's age (converted according to the Buddha's age). Time precision: approximate range.

Sources

Back to Year 12 after the Awakening · The Buddha at 46

Source text

日期怎麼讀

成道第幾年
從佛陀成道開始,每經過一次雨季安居算一年,每一年算到安居結束為止;所有年歲一律依二十九歲出家、三十五歲成道推算。
年份依據
區分經文自己明記、後世註解書記載、先後順序推定及年歲換算。
時間精確度
分別說明確定到日、月、年,或只能放入某幾年之間。
可信度
多派共傳、兩派記載、單派記載與後世補述,表達記載的共傳範圍;與時間及位置是否確定分開閱讀。