Article Detail Who invented Vitamin D ? Answer: Edward Mellanby discovered Vitamin D while researching a disease called rickets in 1922 Similar Questions : 1. Who invented Bacteria ? Answer: Leeuwenhock of Netherlands in 1683 2. Who invented watch ? Answer: Peter Henlein invented the first portable time piece in 1504 3. Who invented Gramophone ? Answer: Emile Berliner in 1887. 4. Who invented Hydrogen bomb ? Answer: Edward Teller 5. Who invented Morphine ? Answer: Friderich Sertumer of Germany in 1805 6. Who invented Floppy disk ? Answer: IBM in 1970 7. Who invented HIV ? Answer: Dr Robert Gallo invented HIV test Read more from - Important Inventions