1 Decides to be reborn while residing in Tushita Heaven

2 Conception: like a great white elephant descends to earth and enters the womb of Mayadevi

3 Takes Birth:
3A the Birth at Lumbini Grove
3B first steps;
3C prediction of two possible destinies by the astrologer Asita

4 Becomes proficient in princely arts and games and so forth

5 Assumes retinue and a queen, lives the worldly life

6 Perceives that worldly affairs are insubstantial:
6A encounters an old person, a sick person, a corpse, and meets an ascetic
6B leaves the palace
6C renounces the world, i.e., cuts his hair and becomes an ascetic

7 Practices austerities for six years

8 Attains Perfect and Complete Enlightenment:
8A sits under the Bodhi Tree and is victorious over Mara
8B awakens to perfect enlightenment

9 Teaches (Turns the Wheel of Dharma)
9A teaches his first disciples, or Turns the Wheel of Dharma, for the first time at Sarnath Deer Park
9B turns the Wheel of Dharma for the second time at Vulture Peak near Rajgir to an assembly of bodhisattvas, gods, and other beings

10 Prevents division of his followers (sangha); tames a mad elephant at Rajgir

11 Performs other miracles:
11A descends from the Heaven of the Thirty-three Gods after teaching his mother
11B miracles at Shravasti and conversion of nonbelievers
11C accepts a gift of honey from a monkey at Vaishali and predicts his own impending death

12 Manifests His Great Passing (Parinivana) at Kushinagara
12A leaves his physical body
12B manifests signs of great passing during cremation, with wondrous lights and flowers falling from the sky; leaves relics