Mary Shelley
The story of Frankenstein started in 1816, when Mary Shelley took a challenge, set by Lord Byron, to write a ghost story. With her husband's encouragement, she completed the novel within a year. In her 'Introduction' to the 1831 edition Mary revealed that she got the story from a dream, in which she saw "the hideous phantasm of a man stretched out, and then, on the working of some powerful engine, show signs of life, and stir with a uneasy, half vital motion."