Heifetz was born into a Russian-Jewish family in Vilna, Lithuania then part of the Russian Empire. His father, Reuven Heifetz, son of Elie, was a local violin teacher and served as the concertmaster of the Vilnius Theatre Orchestra for one season before the theatre closed down. While Jascha was an infant, his father did a series of tests, observing how his son responded to his fiddling. This convinced him that Jascha had great potential, and before Jascha was two years old, his father bought him a small violin, and taught him bowing and simple fingering.
Heifetz and his family left Russia in 1917, traveling by rail to the Russian far east and then by ship to the United States, arriving in San Francisco. On 27 October 1917, Heifetz played for the first time in the United States, at Carnegie Hall in New York, and became an immediate sensation. Fellow violinist Mischa Elman in the audience asked "Do you think it's hot in here?", whereupon the pianist Leopold Godowsky, in the next seat, replied, "Not for pianists." In 1917, Heifetz was elected as an honorary member of Phi Mu Alpha Sinfonia, the national fraternity for men in music, by the fraternity's Alpha chapter at the New England Conservatory of Music in Boston. As he was aged 16 at the time, he was perhaps the youngest person ever elected to membership in the organization. Heifetz remained in the country and became an American citizen in 1925. A possibly apocryphal story circulates that tells of an interaction with one of the Marx brothers: when he told the brother (usually Groucho or Harpo) that he had been earning his living as a musician since the age of seven, he received the reply, "Before that, I suppose, you were just a bum." In 1954, Heifetz began working with pianist Brooks Smith, who would serve as Heifetz's accompanist for many years until he chose Dr. Ayke Agus as his accompanist. He was also accompanied in concert for more than 20 years by Emmanuel Bay, another immigrant from Russia and a personal friend. Heifetz's musicianship was such that he would demonstrate to his accompanist how he wanted passages to sound on the piano, and would even suggest which fingerings to use. After the seasons of 1955-56, Heifetz announced that he would sharply curtail his concert activity, saying "I have been playing for a very long time". In 1958, he tripped in his kitchen and fractured his right hip, resulting in hospitalisation at Cedars of Lebanon Hospital, and a near fatal staphylococcus infection. He was invited to play Beethoven at the United Nations General Assembly, and entered leaning on a cane. By 1967, Heifetz had considerably curtailed his concert performances.

Q: How did his career start?
A: On 27 October 1917, Heifetz played for the first time in the United States, at Carnegie Hall in New York, and became an immediate sensation.

Q: Did he ever release an album?
A: unknown
Did he ever release music?
unknown unknown unknown unknown
unknown