Buddha’s first teaching in this world.
Forty-nine days after Buddha attained enlightenment, as a result of requests he rose from meditation and taught the first Wheel of Dharma.
These teachings, which include the Sutra of the Four Noble Truths and other discourses, are the principal source of the Hinayana, or Lesser Vehicle, of Buddhism.
Later, Buddha taught the second and third Wheel's of Dharma, which include the Perfection of Wisdom Sutras and the Sutra Discriminating the Intention, respectively.
These teachings are the source of the Mahayana, or Great Vehicle, of Buddhism.
It is because of the great kindness of Buddha in turning the Wheel of Dharma that the people of this world have the opportunity to follow a spiritual path to the permanent inner peace of enlightenment.
Without these teachings there would be no path for us to follow and so no possibility of bringing our suffering to an end.
To commemorate this special day, Kadampa Buddhist centers around the world hold special events with prayers for Buddha’s teachings to flourish in this world for a very long time.