Although there is no evidence to suggest that food is originated in Thailand. But it is believed that the first term of spicy food is popular in central region. Because it is rich in many large stream. And also rich in natural river. Prawn, seasoned with spices is from barter trade in India. Spicy menu from the aquatic animals, boiled in a spicy curry is described in the old cookbook. And the tale of the tales that reflects their relationship between daily life and the river together. However, this menu may be in the range of hundred of year back from now. Because chili and pepper plants had recently found in Thailand since around 400 years ago.