May be due to the widespread refrain of eating beef in a group of people who profess "Guanyin" this festival, which would have occurred when around 2170 BC corresponds to the Ayutthaya period.
Probably due to the prevalence of abstinence of eating beef. Among the esteemed "Guanyin" This festival is likely to occur in around 2170 BC with the Ayutthaya period.
Perhaps due to spread of ignoring eating beef. In those respects. "เจ้าแม่กวนอิม” which this festival should occur when the story. The 2170 match period