Sir Alexander Fleming was the first person to discover Penicillin which brought a miraculous change in the medical world. He was born on 6th August 1881 in Ayrshire, Scotland. The discovery of Penicillin was the first step taken to produce antibiotics to fight bacterial diseases. Sir Fleming discovered the Penicillin in 1928 which eventually led to developing drugs that helped the ailing soldiers in World War II. Without this discovery modern world is bound to perish fighting diseases like pneumonia, syphilis, gonorrhea, meningitis, rheumatic fever and so on. Sir Fleming’s discovery played a significant role behind the introduction of the modern pharmaceutical industry.