Frankenstein
Mary Shelley was born August 30th, 1797 and died February 1, 1851. She was an English dramatist, short story writer, novelist, essayist, travel writer, biographer, and best known for her Gothic novel Frankenstein: or, The Modern Prometheus. A lot of Shelley's work was published annonymously, including Frankenstein.
Shelley's Frankenstein novel was first published in 1818. This means she wrote and published her work by the young age of 20... What did you do by the time you turned 20?