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There is a small thing we use every day. We usually put in the bathroom. Without it, we might have tooth problems. Can you guess it is? Yes, it's the toothbrush. But do you know anything about its history?
According to some research, before toothbrushes appeared, the ancient Chinese people their teeth with some small tree branches (树枝). About 800 years ago, people made a kind of brushes with pig hair and bamboo. It might the world's earliest form of toothbrushes. As time went , the forms of toothbrushes changed. For example, people chose horse-tail hair instead of pig hair pig hair was too hard. Imagine that you travel back to of years ago and brush your teeth comfortably. It sounds fantastic, doesn't it?
Around the 15th century, the Chinese toothbrush found its way into Europe. It became among local people soon. The of toothbrushes was not as famous as that of paper-making, but it was very useful in daily life. Today we have a good of brushing teeth. We should thank the ancient Chinese for it.
