Magha Bucha Day
Magha Bucha is thought to be one of the most important Buddhist holidays in Thailand. This celebration marks the great four events that happened during Buddha lifetime: the time of the full moon in the third lunar month; 1250 Buddhist monks from different places met together to pay respect to Buddha; all of the monks were enlightened monks or “Arahants”; all of the monks had been personally ordained by Buddha.
See also
All the holidays and celebrations in Thailand