GENERAL KNOWLEDGE

Detailed explanation-1: -Scottish bacteriologist Alexander Fleming is best known for his discovery of penicillin in 1928, which started the antibiotic revolution. For his discovery of penicillin, he was awarded a share of the 1945 Nobel Prize for Physiology or Medicine.

Detailed explanation-2: -On the 28th September 1895 Louis Pasteur died. His germ theory changed completely the way people understood what germs were and how they worked. 33 years later on 28th September 1928 Alexander Fleming discovered penicillin, the first known antibiotic and the first stunningly effective defence – at least up until now!