Her Metropolitan Opera debut, opening the Met's seventy-second season on October 29, 1956, was again with "Norma", but was preceded with an unflattering cover story in "Time" magazine, which rehashed all of the Callas clichés, including her temper, her supposed rivalry with Renata Tebaldi and especially her difficult relationship with her mother. As she had done with Lyric Opera of Chicago, on November 21, 1957, Callas gave a concert to inaugurate what then was billed as the Dallas Civic Opera, and helped establish that company with her friends from Chicago, Lawrence Kelly and Nicola Rescigno. She further consolidated this company's standing when, in 1958, she gave "a towering performance as Violetta in "La traviata", and that same year, in her only American performances of "Medea", gave an interpretation of the title role worthy of Euripides."