Answer:
I think Germany's experiences with the Nazi concentration camps.
Explanation:
The materials he used to paint with is fading away and soon it will be completely gone if it is not repainted on a daily basis.
1. eating right is very important so you dont get diabetes.
2. exercise it has many benefits to your health and can prevent many diseases.
3. brushing your teeth now I know it might sound weird, but it will help fight gum disease.
Hope this helps