Her apparent mournful nature is also reminiscent of the regretful mien of the Byronic hero. Mapo Doufu and Dan Dan Mien contain Sichuan peppers. King Pan and Iu Mien suffered tremendous losses. They speak the Iu Mien language. King Pan and the Iu Mien were decimated. Marriage norms are strongly preserved in Iu Mien society. The Iu Mien do not call themselves "Yao". One group of Iu Mien migrated from Vietnam to Thailand. The Iu Mien have a strong family foundation. The most important aspect of Iu Mien ancestor worship is when a person died. Local dishes include Mapo doufu, Chengdu Hot pot, and Dan Dan Mien. The Latin-based Hmong and Iu Mien alphabets use full letters for tones. The majority of Iu Mien people still remain in China. However, the local people persecuted the Iu Mien. Hill tribe peoples in Laos include the Hmong, Yao (Mien), Akha, and Lahu.