I don’t know I just had to answer a question sorry
The toothbrush evolved over time and mainly out of necessity. Traces of the first toothbrush can be dated back as early as 3500 B.C.E. These bamboo sticks were then used just like a modern manual toothbrush to clean the teeth. Eventually, the Chinese version of the toothbrush made its way to Europe.
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It had a bigger population, a better industrial base, the north was more richer and had a government
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Hope this helps:)
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D. Dolores Huerta
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was correct edg22 for sure
He is known for creating pi, the number that does not end.