Agatha Christie is born

Dame Agatha Christie, DBE (15 September 1890 – 12 January 1976), was an English crime writer of novels, short stories and plays.

She also wrote romances under the name Mary Westmacott, but is best remembered for her 80 detective novels and her successful West End theatre plays. Her works, particularly those featuring detectives Hercule Poirot and Miss Jane Marple, have given her the title the 'Queen of Crime' and made her one of the most important and innovative writers in the development of the genre.

Agatha Mary Clarissa Miller was born in Torquay, Devon, England. Her mother, Clarissa Margaret Boehmer, was the daughter of a British army captain, but had been sent, as a child, to live with her own mother's sister, who was the second wife of a wealthy American. Eventually Margaret married her stepfather's son from his first marriage, Frederick Alvah Miller, an American stockbroker. Thus the two women Agatha called "Grannie" were sisters. Despite her father's nationality as a "New Yorker" and her aunt's relation to the Pierpont Morgans, Agatha never claimed United States citizenship or connection.

The Millers had two other children: Margaret Frary Miller (1879–1950), called Madge, who was eleven years Agatha's senior, and Louis Montant Miller (1880–1929), called Monty, ten years older than Agatha. Later, in her autobiography, Agatha would refer to her brother as "an amiable scapegrace of a brother".