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 Optical Fibre ? Answer: Indian-born American physicist Narinder Kapany 2. Who invented c language Answer: Dennis Ritchie 3. Who invented Floppy disk ? Answer: IBM in 1970 4. Who invented Blood Transfusion ? Answer: Jean-Baptiste Denys of France in 1625. 5. Who invented Relativity Theory ? Answer: Einstein of Germany in 1905. 6. Who invented Barometer ? Answer: Evangelista Torricelli of Italy in 1644 7. Who invented Neutron bomb ? Answer: Samuel T. Cohen Read more from - Important Inventions