The Royal Ploughing Ceremony, or 'Bon Chroat Preah Nongkoal' in the Khmer language, is solemnly celebrated at the beginning of the sowing and planting season. Every year in May, this cultural ceremony takes place at the park in front of the National Museum (next to the Royal Palace). Cambodia has deep connection with earth and farming. There is a deep astrological belief that royal oxen known in Khmer as Usapheak Reach, have an instrumental role in determining the fate of the agricultural harvest each year.