15 September 1890 , Agatha Christie is born in Torquay. Her original name when born is Agatha Mary Clarissa Miller. Her Parent were Frederick Alvah Miller, a rich American stockbroker, and Clarissa Margaret Boehmer, the English daughter of a British army captain. Christie had a sister, Margaret Frary Miller (1879 – 1950), called Madge, eleven years her senior, and a brother, Louis Montant Miller (1880 – 1929), called Monty, ten years older than Christie. Her father died when she was eleven years old. Her mother taught her at home, encouraging her to write at a very young age. At the age of 16, she went to Mrs Dryden’s finishing school in Paris to study singing and piano.
Her first marriage, an unhappy one, was in 1914 to Colonel Archibald Christie, an aviator in the Royal Flying Corps. The couple had one daughter, Rosalind Hicks. They divorced in 1928, two years after Agatha discovered her husband was having an affair. It was during this marriage that she published her first novel in 1920, The Mysterious Affair at Styles. During World War I she worked at a hospital and then a pharmacy, a job that influenced her work. Many of the murders in her books are carried out with poison.
In 1930, Christie married the archaeologist Sir Max Mallowan. Mallowan was 14 years younger than Christie, and a Roman Catholic, while she was of the Anglican faith. Their marriage was happy in the early years, and endured despite Mallowan’s many affairs in later life, notably with Barbara Parker, whom he married in 1977, the year after Christie’s death.
In 1971 she was made a Dame Commander of the Order of the British Empire.
Agatha Christie died on 12 January 1976, at age 85, from natural causes, at Winterbrook House in the north of Cholsey parish, adjoining Wallingford in Oxfordshire (formerly Berkshire). She is buried in the nearby St. Mary’s Churchyard in Cholsey.
Christie’s only child, Rosalind Hicks, died on 28 October 2004, also aged 85, from natural causes. Christie’s grandson, Mathew Prichard, was heir to the copyright to some of his grandmother’s literary work (including The Mousetrap) and is still associated with Agatha Christie Limited.
Agatha Christie’s first novel The Mysterious Affair at Styles was published in 1920 and introduced the long-running character detective Hercule Poirot, who appeared in 33 of Christie’s novels and 54 short stories.
Her other well known character, Miss Marple, was introduced in The Murder at the Vicarage in 1930, and was based on Christie’s grandmother.
Agatha Christie was revered as a master of suspense, plotting and characterization by most of her contemporaries and, even today, her stories have received glowing reviews in most literary circles. Fellow crime writer Anthony Berkeley Cox was an admitted fan of her work, once saying that nobody can write an Agatha Christie novel but the authoress herself.
This is one of my favorite writer, and she known as Agatha Christie when she wrote detective novel. But she known as Mary Westmacott when wrote roman novel. Christie has been called the best-selling writer of books of all time and the best-selling writer of any kind, along with William Shakespeare by Guinness Book of World Records. Only the Bible is known to have outsold her collected sales of roughly four billion copies of novels. UNESCO states that she is currently the most translated individual author in the world with only the collective corporate works of Walt Disney Productions surpassing her because Christie’s books have been translated into (at least) 56 languages.
Her stage play, The Mousetrap, holds the record for the longest initial run in the world, opening at the Ambassadors Theater in London on 25 November 1952, and as of 2008 is still running after more than 23,000 performances. In 1955, Christie was the first recipient of the Mystery Writers of America’s highest honor, the Grand Master Award, and in the same year, Witness for the Prosecution was given an Edgar Award by the MWA, for Best Play. Most of her books and short stories have been filmed, some many times over (Murder on the Orient Express, Death on the Nile and 4.50 From Paddington for instance), and many have been adapted for television, radio, video games and comics.
In 1968, Booker Books, a subsidiary of the agri-industrial conglomerate Booker-McConnell, bought a 51% stake in Agatha Christie Limited, the private company that Christie had set up for tax reasons. Booker later increased its stake to 64%. In 1998, Booker sold its shares to Chorion, a company whose portfolio also includes the literary estates of Enid Blyton and Denis Wheatley
source : http://en.wikipedia.org/wiki/Agatha_Christie