After Marie's professional debut she became so popular that Filippo was able to negotiate a six-year contract for the two of them. The triumphant première of "La Sylphide" on 12 March 1832, made her the most acclaimed prima ballerina of the Romantic period and him the most renowned choreographer of the day. It is said that the great Romantic period of dance was ushered in on that night. Because of this immense success, the two of them traveled widely together and toured both Europe and Russia.