Part of the history of the sciences from the past fifty years was written by personalities, including Nobel Prize winning Physicists, medal winners from the CNRS, and Fields medal winners: Raimond Castaing, Albert Fert, Jacques Friedel, and Pierre Gilles of Gennes "passed through" Saclay or Orsay.
Some dates (timeline)
Various reports have identified priority actions to be conducted to improve the Saclay scientific and technological cluster, such as the 2004 report entitled "Pour un écosystème de la croissance" (For an Ecosystem for Growth) by Christian Blanc, then a member of parliament from Yvelines. Twice, in June 2007 and then in January 2008, the President of the Republic confirmed the project as one of his priorities. In 2008, three Government initiatives converged to enable concretisation of the plans for scientific development on the Saclay Plateau.
- The first, the opération d’intérêt national (OIN - National Interest Operation) targeting the southern part of Île-de-France, was launched by the Prime Minister in November 2005. A test mission was installed in March 2006. This operation covered a relatively broad area (49 municipalities) encompassing the Saclay Campus as well as Satory La Minière.
- The second, the Opération Campus (Campus Operation), was launched in February 2008 by Valérie Pécresse, Minister of Higher Education and Research. A budget allowance of five billion euros was set aside to assist the growth of the most promising French Campuses. Twelve projects were identified in 2008 in three waves, May, July, and December, including The Paris Saclay Campus.
- The third, the Plan for the Scientific and Technological Cluster on the Saclay Plateau, presented in November 2008, led to the creation of the Etablissement public Paris-Saclay (EPPS - Paris-Saclay Public Institution) in 2010.
On 29 April, 2009, the President of the Republic announced that the Government was investing 850 million euros for the Saclay Plateau (Essonne and Yvelines) where the Government wanted to create a scientific, economic, and technology cluster.