* Early predecessors: Humans have used various tools to groom their hair for thousands of years. Combs made of bone, wood, and other materials have been found in archaeological sites dating back to ancient civilizations.
* Mason Pearson: Credited with inventing the rubber-cushioned hairbrush. He was a British inventor. He created an automated process for manufacturing them in 1885. Pearson's brushes used boar bristles set in a rubber cushion, which was more gentle on the scalp and hair than previous models.
So, while people have used combs and grooming tools for hair for a very long time, Mason Pearson is often credited with the invention of the modern hairbrush with bristles set in a rubber cushion.