Initial discovery of antibiotic penicillin was done by

Penicillin was discovered by Sir Alexander Fleming in 1928. While working at St. Mary's Hospital in London, Fleming noticed that a Petri dish containing Staphylococcus bacteria had been contaminated by a mould (Penicillium notatum), and the bacteria around the mould had been killed. He isolated the substance from the mould and named it penicillin. This discovery revolutionized medicine and marked the beginning of the antibiotic era. Francis Crick and Maurice Wilkins are known for their work on DNA structure (along with Watson and Franklin), while Charles Darwin is famous for his theory of evolution by natural selection.