Hello, I'm trying to find a series of interviews where scientists in their field were asked what they thought would be the most important thing for ancient peoples to know. I think one of them said that matter is made of atoms, other than that I don't remember anything about it.
If you have no idea what I'm talking about, feel free to supply your own answer.
Mine would be: "Disease is caused by tiny creatures that are too small to see. You can avoid letting them into your body by washing yourself regularly, boiling water and cooking food, avoiding contact with sick people and their waste, and cleaning wounds with alcohol."