Short answers, pulled from the story.
Georges Bizet died on the 3rd of June 1875, exactly three days after his 33rd performance of Carmen. He was 36 years old at the time of his death from heart disease on his wedding anniversary.
Prosper Mérimée wrote the 1845 novella that served as the source material for Georges Bizet's opera Carmen. Bizet first encountered Mérimée's story during his time in Rome between 1858 and 1860.
Célestine Galli-Marié was the first singer to perform the title role of Carmen in the premiere on the 3rd of March 1875. She was a demanding performer who became a staunch ally of Bizet during rehearsals.
The opera Carmen first achieved international success with a production by the Vienna Court Opera on the 23rd of October 1875. This version was a great success with the city's public and won praise from both Wagner and Brahms.
The Spanish composer Sebastián Yradier provided the melody for the Habanera in Georges Bizet's opera Carmen. Bizet based the song on Yradier's idiomatic composition El arreglito and later added a note crediting Yradier.