You’d have to ask an historian to know the real reason, but I have a few thoughts, which are probably not entirely correct:
* [Less than 200 years ago](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3807775/) doctors didn’t wash their hands before delivering babies. Slowly we started understanding how **dirty** can mean **diseased**
* Body odor was accepted as part of life, similar to how we accept that cars emit smelly gasses.
* Not everyone was rich enough to have access to plenty of water. As more people get out of poverty, more people can wash daily.
* I think the Victorians started washing everything to differentiate from the poor.
* Advertising, baby. Mouthwash was a very recent invention for something nobody had a problem with.
Latest Answers