April 23, 1853
| Discovery of the Cave of the Major Fountain |
| August 25, 1956 | First speleological exploration of the Cueva de la Font Major |
| January 17, 1957 | Extraction of sediments from the Cueva de la Font Major and opening of the current entrance |
| April 1957 | Transfer of the 1st Siphon by Diego Ciuraneta and Franch |
| 1957 | Bronze finds in the Cueva de la Font Major |
| 1961 – 1962 | “Archaeological study of the site by Salvador Vilaseca |
| 1967 | The first 200 m. Nativity scene for 10 years |
| End of 1985 | The cave already has a total of 2,700 m. of galleries |
| September – October 1986 | Construction taken from the 1st siphon to extract water for the town |
| September 1990 | 3,590 m of galleries discovered in the Cueva de la Font Major |
| 1993 | Found a set of faunal remains inside the Cueva de la Font Major |
| January 29, 1994 | Inauguration of the Cueva de la Font Major as a museum. Work and initiatives of the Center for Local Studies |
| Summer 1994 | adventure route Speleology route
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| October 10, 1994 | Water of St. Tomás The Cueva de la Font Major flooded
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| School year 1996/97 | Inauguration of Cova Castell as a Prehistory classroom-workshop for kindergarten and primary schools |
| Course 1998/99 | Inauguration of excavation workshops for secondary schools |
| July 1, 2000 | Inauguration Cova de la Vila as a museum |
| February 2003 | Placement of the Monolith of the Cave |
| Summer 2005 | Incorporation audio guide service in different languages |
| January 2010 | Inauguration of the new reception of Las Cuevas
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| June 2012 | Inauguration of the new museography of the Cuevas de l’Espluga and the set of Neolithic cabins. Connection of the two cavities |
| May 2013 | Visitor 1,000,000. Escuela Joan Marquès Casals de Terrassa |
| 2018 | The site is included in the IPHES research project “Paleoenvironmental evolution and prehistoric settlement in the Francolí, Gaià, Siurana and Camp de Tarragona river basins (2018 – 2021) |
| October 30, 2019 | Discovery of Paleolithic engravings in the Palletes galleries in the Font Major Cave |
