British Caledonian in the 1970s 31 March 1973 - with the BR airline designator it had inherited from BUA at the time of its formation. This resulted in exclusive use of the BR designator as a prefix for all BCal flight numbers. In 1973, BCal also inaugurated its fourth scheduled domestic trunk route between London Gatwick and Manchester. The new service was contracted to British Island Airways (BIA), BUIA's successor, which operated two daily return trips using its Handley Page Dart Herald turboprops. On 20 March 1974, BCal switched its Gatwick—Paris services to the then brand-new Charles de Gaulle Airport in the northern Paris suburb
Music in Paris major venue for popular music. Many of the churches in Paris have magnificent historic organs, and often host concerts. The city is also known for its music halls and clubs. The Paris Opera, officially called the "Opéra National de Paris" founded in 1669, is the oldest and most famous opera company of France. It mainly produces operas at its modern 2700-seat theatre Opéra Bastille which opened in 1989, and ballets and some classical operas at the older 1970-seat Palais Garnier which opened in 1875. Small scale and contemporary works are also staged in the 500-seat Amphitheatre under the Opéra Bastille.