Alexander Fleming

HH

In 1928, Fleming discovered Penicillin almost entirely by accident. A petri dish

left unsterilised while he went on holiday had gone mouldy.

HH

Before he threw the dish out, he noticed that the mould was actively repelling the bacteria around it, naming the substance Penicillin.

HH

An accidental discovery changed the course of medicine. He was knighted in 1944 and awarded the Nobel Prize in 1945.