
Essonne (pron) is a French department in the region of Île-de-France. It is named after the Essonne River. It was formed on 1 January 1968 when Seine-et-Oise was split into smaller departments. == History == The Essonne department was created on 1 January 1968, from the southern portion of the former department of Seine-et-Oise. In June 1963 Carr...
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http://en.wikipedia.org/wiki/Essonne
[river] The Essonne is a 97 km long French river. It is a tributary off the left bank of the Seine. Its course crosses the departments of Loiret and Essonne, and it gives its name to the latter. The Essone`s name and the present name of its higher course (the Œuf) originate in Acionna, a Gallo-Roman river goddess attested at Orléans (Gena...
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http://en.wikipedia.org/wiki/Essonne_(river)

(from the article `Île-de-France`) ...of France encompassing the north-central départements of Val-d`Oise, Seine-et-Marne, Seine-Saint-Denis, Ville-de-Paris, Hauts-de-Seine, ...
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http://www.britannica.com/eb/a-z/e/46

a department in N France. 923,061; 699 sq. mi. (1810 sq. km). Cap.: Évry.
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https://www.infoplease.com/dictionary/essonne
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