Eric Walker added Indeed, Romans used urine to do laundry…and worse things… - Ciencia Histórica to Sanitation and Ancient Roman civilization

Eric Walker added Ancient Everyday – Pee and Laundry in the Roman World | to Sanitation and Ancient Roman civilization

Eric Walker added Ancient Roman Bathrooms - What Did They Do Without Toilet Paper? to Sanitation and Ancient Roman civilization

Eric Walker added What the Earliest Toilets Say About How Human Civilization Has Evolved | Discover Magazine to Sanitation and Archeology

Eric Walker added In Fatberg Fight, NYC Goes to War Against Flushable Wipes to Sanitation

Eric Walker added a number of topics and a number of links to Health, nutrition, illness and disease, and added Health, nutrition, illness and disease to Biology

Eric Walker added a number of links to Sanitation, and added Sanitation to Health, nutrition, illness and disease