In around 1880 a guy named George E. Davis coined the termed "Chemical Engineering" though the first reference of using mechanical equipment for manufacture of chemicals is given to James F. Donnelly in around 1839. Chemical Engineering based on the building blocks of Unit Operations was taught at MIT; Owen's College, Manchester; University College; London...but failed to impress the employers. It was tough to tell and explain to employers that its graduates were not chemists, and were engineers. But later with works of IChemE, AIChE the branch gradually picked up. By 1940 it became an essential field diversifying into various other concepts such as Transport Phenomenon.World War 2 saw the growth of Petroleum Sector while after that pharmaceutical Industry with Antibiotics gained importance, In 1950 it was the growth of Polymers and then Plastic took control. Then came the series of disasters like Chernobyl Disaster, Bhopal Gas Tragedy; These increased the safety...