10. The First Heart Transplant (1967)
When Dr. Christiaan Barnard successfully performed the first human-to-human heart transplant, the boundaries of medical science were redrawn. This once-unthinkable procedure, straight out of science fiction, offered new hope to patients and sparked global debate about the ethics of organ transplantation. For a deeper look into this pioneering moment and its impact, visit the British Heart Foundation.
