Dhammachakra Pravartan Din is celebrated on the full moon day in the month of Ashwin in the Hindu calendar, which typically falls in October. This year it will fall on Tuesday, October 24th. This holiday marks the occasion when Gautama Buddha gave his first sermon, known as the Dhammacakkappavattana Sutta, to five of his former ascetic companions in Sarnath, near Varanasi, India.
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