Jane Eyre is based on the 1847 novel of the same name by Charlotte Bronte.
The novel revolutionised prose fiction by being the first to focus on its protagonist's moral and spiritual development through an intimate first-person narrative, where actions and events are coloured by a psychological intensity
Unlike Bertha, Jane Eyre is thought of as being sound of mind before the reader is able to fully understand the character, simply because she is described as having a complexion that is pale and she has grown up in a European society rather than in an "animalistic" setting like Bertha

