LEP - The Lord of the Collider Rings at CERN 1980-2000Housed by a 4 m diameter tunnel of 27 km circumference, with huge underground labs and numerous surface facilities, and set up with a precision of 0. 1 mm per kilometer, the Large Electron Positron Collider (LEP) was not only the largest but also one of the most sophisticated scientific research instruments ever created by Man. Located at CERN, near Geneva, LEP was built during the years 1983 1989, was operational until 2000, and corroborated the