Gif-sur-Yvette, Essonne Département, Île-de-France Region, France

🇫🇷 Gif-sur-Yvette is a commune in south-western Ile de France, France. It is located 22.9 km (14.2 mi) from the centre of Paris.

Geography The town is crossed by and named after the river Yvette. The total area is 11.60 km² (4.48 sq mi) and 4.07 km² (1.57 sq mi) is green spaces and woods.

Place names The town of Gif-sur-Yvette is composed of sections: • in the valley: The Rougemonts, The Mérantaise, The Mairie, The Féverie, Coupières, Damiette, Courcelle, l'Abbaye, les Coudraies; • on the Moulon Plateau: The Moulon (uninhabited, aside from a research and educational institute); • on the Hurepoix Plateau: The Hacquinière, Belleville (created before the war) and Chevry (created in the 1970s, and equipped with infrastructure).

Also, the commune's territory includes many forests such as the Hacquinière Wood and the d'Aigrefoin Wood.

Commune's neighbors The neighboring communes of Gif-sur-Yvette are Villiers-le-Bâcle, Saint-Aubin, Saclay, Orsay, Bures-sur-Yvette, Gometz-le-Châtel, Gometz-la-Ville, and Saint-Rémy-lès-Chevreuse.

History The human presence on the Moulon Plateau originates in Neolithic times. Agriculture was developed, notably during the Roman era.

Between the 12th and the 18th century, an important Benedictine abbey was built in Gif.

In the 19th century, Gif remained very agricultural (in particular, operating mills).

In 1867, Gif was linked to the path of the Sceaux train (which later became the south branch of the RER B).

After the First World War, the Gif commune experienced an important demographic change. The town took the name Gif-sur-Yvette in 1930.

Just after the Second World War, Gif-sur-Yvette acquired an international scientific reputation, with the construction of the CNRS and of the CEA.

The French Alternative Energies and Atomic Energy Commission discovered radioactive contamination in a private home in 1974. The home had been built upon a site where needles containing radon gas were once manufactured, starting in 1915. The needles were used to sterilize infected tissue—an idea developed by Marie Curie.

The town was extended in 1975, with the creation of the Chevry section, from areas ceded by the Gometz-la-Ville and Gometz-le-Châtel communes.

Tourist Industry The Saint-Rémi Church, a structure of Romanesque and Gothic architecture, was constructed in the 12th century and remained until the 15th century. It was registered as a historic monument in 1938.

Some ruins remain of a Benedictine abbey which was built in the 12th century and became a national property in 1789. It was officially registered in 1963.

Economy Gif-sur-Yvette is situated in the "Science Valley" of the Yvette River. Numerous research organizations exist in this area, such as the CNRS (Centre National de la Recherche Scientifique), the CEA (Commissariat à l'Énergie Atomique), Supélec (École Supérieure d'Électricité), the LGEP (Laboratoire de Génie Électrique de Paris, associated with Supélec), SOLEIL Synchrotron (Source Optimisée de Lumière d'Energie Intermediaire du LURE) and the Institute of Plant Biotechnology. Also, Gif is home to the Centre National d'Études and of the National Police Academy.

The CGT operates, since 1950, a permanent central college of Gif-sur-Yvette, the Benoît Frachon Center, situated along the Yvette River.

Transport Gif-sur-Yvette is served by two stations on Paris RER line B: Gif-sur-Yvette and Courcelle-sur-Yvette. Like all the train stations on this line, one train goes towards/past Paris (Aéroport Charles de Gaulle 2 TGV or Mitry-Claye) and the other goes towards the other end of the line: Saint-Rémy-lès-Chevreuse. The trains arrive generally at 15-minute intervals.