On this day in 1923, Soprano legend Maria Callas was born

Maria Callas was one of the most renowned and influential opera singers of the 20th century.

She was born at Flower Hospital (now the Terence Cardinal Cooke Health Care Center),  on December 2, 1923, to Greek parents, George and Evangelia.

The name on Callas's New York birth certificate is Sophie Cecilia Kalos, although she was christened Maria Anna Cecilia Sofia Kalogeropoulos.

Callas began taking classical piano lessons when she was 7-years-old. Though overshadowed by her older sister Jackie, who was viewed as beautiful and charismatic, she had an amazing talent at singing music with dramatic flair, with her mother pushing her to pursue a vocal career.

In 1937, when Callas was a teenager, her parents separated and that is when she, her mother and sister moved to Greece. She spent the war years studying music and performing professionally to support her family.

Though she was a sensation in Europe by the time the war ended, Callas did not find immediate success after making her way back to America in the late 1940s. Significantly overweight since childhood, Callas effected a dramatic physical transformation in her early 30s that fundamentally altered the trajectory of her career. She dropped more than 35 kilograms over three years in the mid-1950s, becoming, in the words of Time magazine, “Svelte, successful…a diva more widely hated by her colleagues and more wildly acclaimed by her public than any other living singer.”

During World War II, Callas struggled to find roles. In the mid-1940s, she moved back to New York to spend time with her father and look for work, but experienced a number of rejections. She eventually moved to Verona, where she met rich industrialist Giovanni Meneghini. The couple married in 1949.

Callas’s Italian opera debut took place at the Verona Arena in August 1947, in a performance of La Gioconda. Over the next few years, under the management of her husband, Callas continued to perform in Florence and Verona to critical acclaim.

Though her voice captivated audiences, as her fame increased, Callas developed a reputation as a temperamental, demanding diva and was nicknamed “The Tigress.”

Her reputation as a “Diva” was earned through years of backstage battles with costars and Callas’ habit of grabbing solo curtain calls at every opportunity. A public spat with a rival soprano at La Scala in Milan turned parts of the Italian audience against her.

Fiercely resilient, Callas said of audience members’ jeers, “Hissing from the gallery is part of the scene. It is a hazard of the battlefield. Opera is a battlefield, and it must be accepted.”

Callas finally conquered America in the late 1950s, becoming not only opera’s biggest live draw but also its most successful recording artist since Enrico Caruso.

In 1956, she had the opportunity to sing with the Metropolitan Opera in her home city of New York, but in 1958 was fired by director Rudolf Bing. Callas’ marriage had also begun to unravel. Callas and her Italian husband Giovanni Battista Meneghini split at the end of the decade, during which time she was said to be having an affair with shipping magnate Aristotle Onassis, who later wed former U.S. first lady Jackie Kennedy causing much grief for Callas.

On September 16, 1977, Maria Callas died in Paris of a heart attack at the age of 54.

"I have just seen her on her bed," says Michel Glotz, her former artistic director, in an AFP report.

"It was the image itself of 'La Traviata' as she performed it in 1956 at Milan's La Scala. There was not a line on her face. It seems like she was just resting."

*Listen to Maria Callas' dynamic voice here-