What are the five key incidents elaborated in the Kalpasutra section, often illustrated by artists?

1) War, conquest, marriage, rule, and death
2) Conception, birth, renunciation, enlightenment and first sermon, and salvation
3) Love, betrayal, sacrifice, reunion, and redemption
4) Creation, destruction, rebirth, ascension, and transcendence

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Answer: Conception, birth, renunciation, enlightenment and first sermon, and salvation
The five key incidents elaborated in the Kalpasutra section, often illustrated by artists, are conception, birth, renunciation, enlightenment and first sermon, and salvation.

Among the most widely illustrated canonical text in the Jain tradition is Kalpasutra. It has a section, reciting events from the lives of the 24 Tirthankaras — from their births to salvation — that provides a biographical narrative for artists to paint. The five key incidents roughly elaborated as — conception, birth, renunciation, enlightenment and first sermon, and salvation from the lives of Tirthankaras and events leading to and around these — comprise most part of the Kalpasutra.