The dirty history of soap
- Written by Judith Ridner, Professor of History, Mississippi State University
How many times a day do you use soap?Paul Linse/The Image Bank via Getty Images
“Wash your hands often with soap and water for at least 20 seconds.” That’s what the CDC has advised all Americans to do to prevent the spread of COVID-19 during this pandemic.
It’s common-sense advice. The surfactants found in soap lift germs...