I Bet Ya Didn't Know
#965I Bet Ya Didn't Know: The first toothbrush with bristles was developed in China in 1498. Bristles were taken from hogs at first, later from horses. The nylon bristles were developed in 1938 by DuPont.
I Bet Ya Didn't Know: The first toothbrush with bristles was developed in China in 1498. Bristles were taken from hogs at first, later from horses. The nylon bristles were developed in 1938 by DuPont.