In ancient Thailand, Blackpool was beautiful, which was actually the same as Tang's plump beauty, but it was strange that we had never met.

In fact, the custom of Blackpool has existed in Southeast Asia since ancient times, especially for the Dai people who belong to Japan, Thailand and China. Mainly because there was no toothpaste to clean toothbrushes in ancient times, and the tropics liked to chew betel nuts, so Thai people used betel nuts to clean their teeth and freshen their breath. First, betel nut, betel nut leaves and lime (baked in the shell) are mashed, mixed in a small container, then chewed in the mouth, and finally cut tobacco is added to brush your teeth. Eat areca can stain teeth, first red and then black.