Question: Eliza Doolittle was first presented on stage in what year?

Context paragraphs:
Eliza Doolittle (album): Eliza Doolittle is the debut album by British recording artist Eliza Doolittle.  It was released on 12 July 2010 by Parlophone Records.  The first single, "Skinny Genes", was released on 11 April 2010.  The second single, "Pack Up", was released on 5 July 2010.  On 7 January 2011 it was announced by BPI that the album had been certified Platinum for sales of 300,000 in the UK.  The album was released in the United States on 19 April 2011.

I Could Have Danced All Night: "I Could Have Danced All Night" is a song from the musical "My Fair Lady", with music written by Frederick Loewe and lyrics by Alan Jay Lerner, published in 1956.  The song is sung by the musical's heroine, Eliza Doolittle, expressing her exhilaration and excitement after an impromptu dance with her tutor Henry Higgins - in the small hours of the morning.  In a counterpoint during the second of 3 rounds, two maids and the housekeeper, Mrs. Pearce, urge Eliza to go to bed, but she ignores them.

Pygmalion (play): Pygmalion is a play by George Bernard Shaw, named after a Greek mythological figure.  It was first presented on stage to the public in 1913.

Jacquetta May: Jacquetta May is a British writer, actress, and theatre director.  Born in Kent, she went to Bristol University and worked as a theatre actress for 10 years before moving into TV, appearing at the National Theatre, The Royal Exchange and Liverpool Playhouse amongst others.  Theatre roles include Eliza Doolittle in "Pygmalion", Adriana in "The Comedy of Errors", Olivia in "Twelfth Night", Lady Chatterley in "Lady Chatterley's Lover", Rita in "Educating Rita" and Beverley in "Abigail's Party".

Rollerblades (Eliza Doolittle song): "Rollerblades" is the third single from British recording artist Eliza Doolittle, taken from her debut album "Eliza Doolittle".  It was released on 17 October 2010 and peaked at 58.  The track has been added to Radio 1's A-Playlist.

Mr Medicine: "Mr Medicine" is the fourth single from British recording artist Eliza Doolittle, taken from her debut album "Eliza Doolittle".  It was released on 7 March 2011 and peaked at 130.

Pack Up: "Pack Up" is the second single by British recording artist Eliza Doolittle, taken from her debut album, "Eliza Doolittle".  It was released on 5 July 2010.  The song lyrics contain the title of the 1915 song "Pack Up Your Troubles in Your Old Kit-Bag".  Lloyd Wade sings the main hook with Doolittle.  The single was Doolittle's debut in most European counties.

Eliza Doolittle (singer): Eliza Sophie Caird (born 15 April 1988), better known by her stage name Eliza Doolittle, is an English musician and recording artist from Camden Town, London.  After performing her music in live venues around London from the age of 15, Eliza signed to Parlophone in 2008.

Eliza Doolittle (EP): Eliza Doolittle is an EP by British recording artist Eliza Doolittle.  It was released in the UK on 29 November 2009 by digital download.

Skinny Genes: "Skinny Genes" is a song performed by British recording artist Eliza Doolittle.  The song serves as her debut single and first single from her debut album, "Eliza Doolittle".  The track was co-written by Doolittle in collaboration with Tim Woodcock and the song's producer Matthew Prime.  "Skinny Genes" was one of three tracks where Doolittle had worked with Prime and Woodcock for her debut album.  The single was officially released on 11 April 2010 by Parlophone Records on digital download-only format, accompanied by a b-side entitled "Police Car" (written by Doolittle and Craigie Dodds).  The track is inspired by love-hate relationships and contains prominent indie pop musical characteristics.  Lyrically, "Skinny Genes" refers from feminist point of view to how one can dislike all the personality traits of a partner but still enjoy the sexual chemistry one shares with them.

Supporting paragraphs: Jacquetta May Pygmalion (play)
Answer: 1913