Do you know when the stethoscope was invented? The Diptheria Vaccine? Penicillin?

In honor of their 200th anniversary, the New England Journal of Medicine has created an interactive timeline of modern medical discoveries.

The timeline is illustrated with photos and ephemera and lets you browse from the journal’s early years of horseback delivery to today.

For National Handwashing Awareness Week, we are revisiting our: Quiz About Handwashing Take the quiz! Or find out more at:

• Keeping Hands Clean
• Henry the Hand Foundation