In its different forms and languages, Carlo is related to great personages in different areas of the human culture. I have collected some examples:
As I am a biologist, the first two personages are related to my first scientific interest: Linnaeus and Darwin.
Charlie "Bird" Parker was a great saxophonist and jazz player. I love his performances and famous "solo": Ornithology, A night in Tunisia, Lover man...
Charles Mingus was another great jazz player... I had the fortune to see and listen one of his last concert in Italy.
Carlo Rubbia is a great scientist who won the Nobel Prize for Physics.
Karl Marx was a German social philosopher. With Engels he founded the modern socialism.