CMS cavern inaugurated

1 February 2005

After six and a half years of work, CERN leaders and dignitaries celebrate the completion of a second detector cavern. The CMS cavern is 53 x 27 x 24 metres. The construction was delayed by six months after workers unearthed 4th century Gallo-Roman ruins at the work site. Archaeologists found a Gallo-Roman villa with surrounding fields, coins from Ostia (a seaport of Rome), Lyon in France (then Gaul) and London.

Timeline: 
The Large Hadron Collider

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