Question

christian barnard is known for: *
publishing the first anatomy book
inventing bifocals
creating the first mercury thermometer
performing the first successful heart transplant

Explanation:

Christian Barnard is a well - known South African cardiac surgeon who performed the world's first successful human - to - human heart transplant. The first anatomy book is not associated with him. Bifocals were invented by Benjamin Franklin. The first mercury thermometer was created by Daniel Gabriel Fahrenheit.

Answer:

performing the first successful heart transplant