Chotrul Düchen (Day of Miracles), plus the anniversaries of Marpa Lotsawa, Garab Dorje & the 7th Karmapa, Chodrak Gyamtso.

Leaders of 6 main Indian philosophical schools challenged the Buddha to a contest and Buddha Shakyamuni performed miracles for 15 days, completely overwhelming his challengers and thus inspiring people to follow the Dharma.

 The full moon day marks the end of 15 days of Miracles