Final answer:
The first heart transplant in South Africa and the world was performed by Dr. Christiaan Barnard.
Step-by-step explanation:
The first heart transplant in South Africa and the world was performed by Dr. Christiaan Barnard. In 1967, he conducted the ground-breaking surgery at Groote Schuur Hospital in Cape Town, South Africa. The recipient of the heart transplant, Louis Washkansky, survived for 18 days after the procedure, marking a significant milestone in medical history.