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 Ballistic missile ? Answer: Wemher von Braun of Germany in 1944. 2. Who invented Open Heart Surgery ? Answer: Dr. Daniel Hale Williams 3. Who invented c language Answer: Dennis Ritchie 4. Who invented Laptop ? Answer: Adam Osborne in 1981. 5. Who invented Transformer ? Answer: Ottó Bláthy 6. Who invented Proton ? Answer: Ernest Rutherford 7. Who invented Penicillin ? Answer: Alexander Fleming of Britain in 1928. Read more from - Important Inventions