Who invented the first cardiac pacemaker?

Discover Canada records this in one direct sentence. The guide writes: Dr. John A. Hopps — invented the first cardiac pacemaker, used today to save the lives of people with heart disorders. The inventor the test wants is therefore Dr. John A. Hopps.

The pacemaker saves lives. Discover Canada describes the cardiac pacemaker as a device "used today to save the lives of people with heart disorders." So Hopps's invention is not just a historical achievement — it remains a routine, life-saving medical device that millions of people around the world rely on today.

Hopps joins the list of major Canadian medical contributors. Discover Canada places him in its "Great Canadian Discoveries and Inventions" section alongside Sir Frederick Banting and Charles Best (who discovered insulin in Toronto, saving 16 million lives worldwide), Dr. Wilder Penfield (the pioneering brain surgeon at McGill University in Montreal, known as "the greatest living Canadian"), and others. So Canadian medical history has produced multiple foundational discoveries — insulin, brain surgery, and the cardiac pacemaker — each saving lives in modern hospitals.

The list of Canadian inventors is long. Discover Canada names many alongside Hopps: Alexander Graham Bell (the telephone idea), Sir Sandford Fleming (worldwide standard time zones), Joseph-Armand Bombardier (the snowmobile), Reginald Fessenden (early radio), Matthew Evans and Henry Woodward (the first electric light bulb, patent later sold to Thomas Edison), SPAR Aerospace / National Research Council (the Canadarm robotic arm), and Mike Lazaridis and Jim Balsillie (the BlackBerry). The pacemaker thus joins a long Canadian tradition of world-changing inventions, from telecommunications to space technology to medical devices.

The question is testing whether new citizens know who invented the first cardiac pacemaker. Discover Canada commits to one inventor: Dr. John A. Hopps. The right test answer matches that.

The wrong answer choices each pick a different Canadian medical or scientific figure. Dr. Wilder Penfield was a pioneering brain surgeon, not the pacemaker inventor. Sir Frederick Banting (with Charles Best) discovered insulin — a different medical breakthrough. Alexander Graham Bell hit on the idea of the telephone — telecommunications, not the pacemaker. Only Dr. John A. Hopps invented the first cardiac pacemaker.