Both he and his brother Ananda, who were considerably younger than the Buddha, joined the brotherhood in the twentieth year of the Buddha's ministry.
1 That is by the Arahat, the title the Buddha always uses of himself.
Heracleitus, who was a generation or two later than the Buddha, had very similar ideas; s and similar ideas are found in post-Buddhistic Indian works.
It is necessary to remember that the Buddha, like other Indian teachers of his period, taught by conversation only.
All the others continued loyal disciples, but Devadatta, fifteen years afterwards, having gained over the crown prince of Magadha, Ajatasattu, to his side, made a formal proposition, at the meeting of the order, that the Buddha should retire, and hand over the leadership to him, Devadatta (Vinaya Texts, iii.