What did chris barnad discover and when?

Chris Barnard is best known for performing the world's first successful heart transplant on December 3, 1967, in Cape Town, South Africa. This groundbreaking procedure involved transplanting a heart from a deceased donor into a 53-year-old patient, Louis Washkansky, who survived for 18 days post-surgery. Barnard's work revolutionized cardiac surgery and opened the door for future organ transplants.