Callas was one of the most renowned and influential opera singers of the 20th century. Critics praised her bel canto technique, wide-ranging voice and dramatic gifts. Her repertoire ranged from classical opera seria to the bel canto operas of Donizetti, Bellini and Rossini and further, to the works of Verdi and Puccini; and, in her early career, to the music dramas of Wagner. Her musical and dramatic talents led to her being hailed as La Divina.
WIKIPEDIA
Born in New York City and raised by an overbearing mother, she received her musical education in Greece and established her career in Italy. Forced to deal with the exigencies of wartime poverty and with myopia that left her nearly blind onstage, she endured struggles and scandal over the course of her career.