2404. When was the toothbrush invented?

A. 1770
B. 1765
C. 1790
D. 1742
✅ The correct answer is option A.
The creator of the first mass-produced toothbrush is believed to have been William Addis of England in 1780. Addis had been jailed in 1770 for inciting a riot. In jail, he developed a toothbrush consisting of an animal bone and bristles made of pigs’ hair that were inserted into drilled holes and held in place by glue. After his release, he started a toothbrush manufacturing company called ADDIS that stayed in his family until 1996 and still manufactures toothbrushes today.

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