With over 4 billion copies sold of her novels, written in at least 56 different languages, only the Bible is known to have sold more than Agatha Christie. With her series of 80 complex, story-driven mysteries, Agatha Christie has made a name for herself in the world of authors. His many achievements include the creation of the only fictional character, Hercule Poirot, who had an obituary in the New York Times, and the world's longest-running play, The Mousetrap, with over 23,000 performances. She was named the best-selling book writer of all time and the best-selling novelist of any type by the Guinness Book of World Records. Agatha Mary Clarissa Miller was born on September 15, 1890 to Clarissa Margaret Boehmer and Frederick Alvah Miller. He had two older siblings, a sister, Margaret, and a brother, Louis. She received no formal education before attending finishing school in Paris, instead her mother and governesses taught her to read at home. During World War I, Agatha worked as a nurse in a hospital and quite enjoyed herself. He said it is "one of the most rewarding professions anyone can follow." He then continued to work in a pharmacy in a hospital. On Christmas Eve 1914, Agatha married Archibald Christie, a pilot in the Royal Flying Corps. They had a daughter, Rosalind Hicks, in 1919, and in 1920 Agatha Christie's first novel, The Mysterious Affairs at Styles, was published. In late 1926, Archie admitted that he was in love with another woman and wanted a divorce. On December 8, Archie left to spend the weekend with his lover, Nancy Neele. That same night, Agatha left their home, leaving a letter for her secretary saying she would be in Yorkshire. His disappearance from public opinion caused... half the paper... and not Europeans. In his short story The Croupier's Soul, he described "hook-nosed Jewish men wearing rather gaudy jewelry"; in later editions it was changed to describe "sallow men" rather than Hebrew. Raymond Chandler criticized Christie in his essay, The Simple Art of Murder and Edmund Wilson was dismissive of her in his article entitled Who Cares Who Killed Roger Ackroyd?. From 1971 to 1975 Christie's health began to deteriorate but she didn't let that stop it. from writing. He died of natural causes on January 12, 1976. Canadian scientists believe he suffered from Alzheimer's or another form of dementia. Although she has passed away, her achievements have lived on through the success of her books, plays and poems. Her numerous works have made her one of the most significant and innovative writers in the development of the mystery genre.