Alexander Fleming was born in Ayrshire on 6th August 1881, the son of a farmer. he moved to London at the age of 13 and later trained as a doctor.
he qualified with distinction in 1906and began his medical research at St Mary's Hospital School at the University of London.
Fleming served in the Army Medical Corps in world war one and was mentioned in dispatches. he returned to St Mary's shortly after.
in 1928, in an experiment, Alexander noticed mould develop accidentally on a set of culture dishes used for staphylococci germ. it had created a bacteria free circle around itself.
Flemming experimented further and discovered penicillin but it was Howard Florey and Ernst Chain continued to research it and produce it as a drug.
he wrote numerous books on bacteriology and immunology and chemotherapy and he was elected professor of the medical school. in 1945, Flemming, Florey and Cain shared the Nobel prize in medicine. Unfortunately, Alexander died on 11th march 1955.