The cardiac pacemaker
Who
Paul Zoll, an American Jewish cardiologist, a pioneer of cardiac pacing and defibrillation.
When
1952
Where
Boston, Massachusetts, USA
In 1952 cardiologist Paul Zoll demonstrated that a failing heart could be paced by external electrical stimulation, launching the field of cardiac pacing. Zoll, the son of Jewish immigrants, worked at Beth Israel Hospital in Boston, and his work paved the way for the modern pacemaker.
Sources
Part of “The Gifts of the Jews” — verified Jewish contributions to the world, with sources.