She was a Greek-American soprano who dominated the opera world in the 1950s and 1960s. She was known for her exceptional voice, dramatic intensity, and powerful stage presence.
Here are some of the roles that made her famous:
* Norma in Vincenzo Bellini's *Norma*
* Tosca in Giacomo Puccini's *Tosca*
* Violetta in Giuseppe Verdi's *La traviata*
* Aida in Giuseppe Verdi's *Aida*
* Medea in Luigi Cherubini's *Medea*
Callas was a controversial figure, known for her passionate temperament and tumultuous personal life. However, her extraordinary talent and influence on opera remain undisputed. She is considered one of the greatest opera singers of all time.