Stevenson uses lots of biblical imagery and allusions in his writing as his audience at that time would have been heavily religious
What is the theory of evolution in relation to charles darwin called?
Darwinism
John Hunter was considered Stevensons inspiration for dr jekylls character
John Hunter was a well known doctor with a large circle of friends in London
What age are they
Victorian
Madness is used as a tool to evoke fear as mental illness was something historically feared and not understood at that time.
Lombrosos theory of atavism states that some people are born criminal. He stated that physical characteristics meant that some people were born with a criminal disposition.
Hyde clearly has some atavistic traits in the novella