Question: Dheepan was partly inspired by the literary work written in what year?

Context paragraphs:
Jean Krier: Jean Krier (2 January 1949 – 12 January 2013) was a Luxembourg poet who in 2011 was awarded both the Adelbert von Chamisso Prize for the best work by a non-German author and the Servais Prize for the best literary work written by a Luxembourger.  In both cases, the work in question was "Herzens Lust Spiele" (2010).  In connection with the Chamisso prize, the jury commented on how the work provided an original and impressive enrichment of German-language poetry.  "His carpets of German, subtly interspersed with sprinkles of French, are fed by experiential elements and reading experiences".

Dheepan: Dheepan is a 2015 French crime drama film directed by Jacques Audiard and co-written by Audiard, Thomas Bidegain, and Noé Debré.  The film was partly inspired by Montesquieu's "Persian Letters", as well as the 1971 film "Straw Dogs", with guidance from Antonythasan Jesuthasan, who stars as the title character.

Return to the Field: Return to the Field (歸田賦) is a literary work written in the Chinese style known as a rhapsody, or "fu" style: it is by Zhang Heng (AD 78–139), an official, inventor, mathematician, and astronomer of the Han Dynasty of China (202 BC–220 AD).  Zhang's "Return to the Field" is a seminal work in the Fields and Gardens poetry genre which helped to sparked centuries of poetic enthusiasm for poems of various forms which share a common theme of nature foremost with human beings and human thought seemingly not in main focus, somewhat similar to the Landscape poetry genre; however, in the case of the Fields and Gardens genre, nature was focused upon in its more domestic manifestation, paying homage to the appearance of nature in gardens, as found in backyards, and cultivated in the countryside.  "Return to the Field" also invokes traditional themes of Classical Chinese poetry involving nature versus society.

La Fábula de Polifemo y Galatea: La Fábula de Polifemo y Galatea ("The Fable of Polyphemus and Galatea"), or simply the "Polifemo", is a literary work written by Spanish poet Luis de Góngora y Argote.  The poem, though borrowing heavily from prior literary sources of Greek and Roman Antiquity, attempts to go beyond the established versions of the myth by reconfiguring the narrative structure handed down by Ovid.  Through the incorporation of highly innovative poetic techniques, Góngora effectively advances the background story of Acis and Galatea’s infatuation as well as the jealousy of the Cyclops Polyphemus.

José Saramago Prize: The José Saramago Literary Prize has been awarded since 1999 by the Circulo de Leitores Foundation to a literary work written in Portuguese by a young author in which the first edition was published in a Lusophone country.

Literariness: Literariness is the organisation of language which through special linguistic and formal properties distinguishes literary texts from non-literary texts (Baldick 2008).  The defining features of a literary work do not reside in extraliterary conditions such as history or sociocultural phenomena under which a literary text might have been created but in the form of the language that is used.  Thus, literariness is defined as being the feature that makes a given work a literary work.  It distinguishes a literary work from ordinary texts by using certain artistic devices such as metre, rhyme, and other patterns of sound and repetition.

Anica Bošković: Anica Bošković (1714 in Dubrovnik – 13 August 1804 in Dubrovnik) was a Ragusan writer.  She wrote a pastoral song and translated from the Italian language.  Educated by Jesuits, Christian themes permeate her work.  Hers was one of the first important women's names in Croatian literature.  "The Dialogue" (1758), "was the first and sole literary work written by a female author in the literature of old Dubrovnik".

The Earth Gods: The Earth Gods is a literary work written by poet and philosopher Kahlil Gibran.  It was originally published in 1931, also the year of the author's death.  The story's structured as a dialogue between three unnamed earth gods, only referred to as First God, Second God, and Third God.  As is typical of Gibran's works, it's a classic that focuses on spiritual concepts.

Preface: A preface ( ) or proem ( ) is an introduction to a book or other literary work written by the work's author.  An introductory essay written by a different person is a "foreword" and precedes an author's preface.  The preface often closes with acknowledgments of those who assisted in the literary work.

Persian Letters: Persian Letters (French: "Lettres persanes" ) is a literary work, written in 1721, by Charles de Secondat, baron de Montesquieu, recounting the experiences of two Persian noblemen, Usbek and Rica, who are traveling through France.

Supporting paragraphs: Dheepan Persian Letters
Answer: 1721