3h 19min, dec 30, 1779 y - 3 toothbrush
Description:
1780
William Addis of England invented the first mass-produced toothbrush. While in prison, he drilled small holes in a cattle bone, tied swine fibers (from wild pigs) in bunches, passed them through the holes and then glued them.
Added to timeline:
Date:
3h 19min, dec 30, 1779 y
Now
~ 245 years ago