William Einthoven wins the Nobel Prize for the creation of electrocardiography, starting the process of identifying problems within the heart.
Mark C. Lidwill resuscitated a baby in a Sydney hospital, by applying electricity to the heart directly, being the first person to ever do so.
Dr. Albert Hyman invents the first "artificial cardiac pacemaker", that was powered by a hand crank.
Claude Beck, a heart surgeon, successfully defribrillated a human heart for the first time.
John Hopps creates the first external portable pacemaker, that needs to be plugged into powerpoints.
Arne Larsson receives the first fully implanted pacemaker, going on to live another 43 years.
Leon Abrams and Ray Lightwood create the first demand pacemaker, and shortly after the product is commercially available.
The first lithium-ion battery powered pacemaker is installed in an anonymous patient, setting the standard for improve battery life.
Cardiovascular health company, Cordis, release the first series of pacemakers that are programmable through computing chips.
First pacemakers using integrated circuits was created.