In April 1987, on the occasion of the 30th anniversary of the signing of the Rome Treaties, Joseph Kasel, former Head of the International Treaties Department in the Luxembourg Foreign Ministry, recalls the atmosphere and the last-minute difficulties encountered at the ceremony held on 25 March 1957 at the Capitol to mark the signing of the Treaties establishing the European Economic Community (EEC) and the European Atomic Energy Community (EAEC or Euratom).