IN: Barnard grew up in Beaufort West, Cape Province, Union of South Africa. His father, Adam Barnard, was a minister in the Dutch Reformed Church. One of his four brothers, Abraham, was a "blue baby" who died of a heart problem at the age of three (Barnard would later guess that it was tetralogy of Fallot). The family also experienced the loss of a daughter who was stillborn and who had been the fraternal twin of Barnard's older brother Johannes, who was twelve years older than Chris.

Barnard performed the world's first human-to-human heart transplant operation in the early morning hours of Sunday 3 December 1967. Louis Washkansky, a 54-year-old grocer who was suffering from diabetes and incurable heart disease, was the patient. Barnard was assisted by his brother Marius Barnard, as well as a team of thirty persons. The operation lasted approximately five hours. Barnard stated to Washkansky and his wife Ann Washkansky that the transplant had an 80% chance of success. This has been criticised by the ethicists Peter Singer and Helga Kuhse as making claims for chances of success to the patient and family which were "unfounded" and "misleading". Barnard later wrote, "For a dying man it is not a difficult decision because he knows he is at the end. If a lion chases you to the bank of a river filled with crocodiles, you will leap into the water, convinced you have a chance to swim to the other side." The donor heart came from a young woman, Denise Darvall, who had been rendered brain dead in an accident on 2 December 1967, while crossing a street in Cape Town. On examination at Groote Schuur hospital, Darvall had two serious fractures in her skull, with no electrical activity in her brain detected, and no sign of pain when ice water was poured into her ear. Coert Venter and Bertie Bosman requested permission from Darvall's father for Denise's heart to be used in the transplant attempt. The afternoon before his first transplant, Barnard dozed at his home while listening to music. When he awoke, he decided to modify Shumway and Lower's technique. Instead of cutting straight across the back of the atrial chambers of the donor heart, he would avoid damage to the septum and instead cut two small holes for the venae cavae and pulmonary veins. Prior to the transplant, rather than wait for Darvall's heart to stop beating, at his brother Marius Barnard's urging, Christiaan had injected potassium into her heart to paralyse it and render her technically dead by the whole-body standard. Twenty years later, Marius Barnard recounted, "Chris stood there for a few moments, watching, then stood back and said, 'It works.'" Washkansky survived the operation and lived for 18 days, having succumbed to pneumonia as he was taking immunosuppressive drugs.

Was it successful?

OUT: Washkansky survived the operation and lived for 18 days, having succumbed to pneumonia as he was taking immunosuppressive drugs.

IN: Timmons was born in Philadelphia, Pennsylvania, the son of a minister. He had a sister, Eleanor. Both of his parents, and several aunts and uncles, played the piano. From an early age Timmons studied music with an uncle, Robert Habershaw, who also taught McCoy Tyner.

Timmons moved to New York in 1954. He played with Kenny Dorham in 1956, making his recording debut with the trumpeter in a live set in May of that year. He went on to play and record with Chet Baker in 1956-57 (bassist Scott LaFaro was part of this band for a time), Sonny Stitt in 1957, and Maynard Ferguson in 1957-58. He also recorded as a sideman with hornmen Curtis Fuller, Hank Mobley, and Lee Morgan, all for Blue Note Records in 1957. Timmons became best known as a member of Art Blakey's band the Jazz Messengers, which he was first part of from July 1958 to September 1959, including for a tour of Europe. He was recruited for the Messengers by saxophonist Benny Golson, who said that "He was inventive, [...] He could play bebop and he could play funky - he could play a lot of things, and I thought it was the element that Art needed. He hadn't had anybody quite like Bobby, who could go here or go there, rather than walking in a single corridor." By late 1958 Timmons was sharing bandmate Morgan's East Sixth Street apartment and the pair had bought a piano, allowing Timmons to practice and Morgan to work on composing. From around the time he joined Blakey, Timmons, along with some of his fellow band members, was a heroin user. After leaving Blakey, Timmons joined Cannonball Adderley's band, in October 1959. Timmons was also known as a composer during this period: The Encyclopedia of Jazz states that his compositions "Moanin'" (from the 1958 album of the same title), "This Here", and "Dat Dere" "helped generate the gospel-tinged 'soul jazz' style of [the] late '50s and early '60s." The first was written when Timmons was first with Blakey; the others were composed when he was with Adderley. "This Here" (sometimes "Dis Here") was a surprise commercial success for Adderley: recorded in concert in 1959, it was released as part of The Cannonball Adderley Quintet in San Francisco album while the band was still on tour, and they discovered its popularity only when they arrived back in New York and found crowds outside the Village Gate, where they were due to play. Timmons was reported to be dissatisfied with the money he had received from "This Here", and was enticed in February 1960 into leaving Adderley and returning to Blakey's band by the offer of more pay. Timmons then appeared on further well-known albums with the drummer, including A Night in Tunisia, The Freedom Rider and The Witch Doctor. His own recording debut as sole leader was This Here Is Bobby Timmons in 1960, which contained his first versions of his best-known compositions. In the same year, he played on recordings led by Nat Adderley, Arnett Cobb, and Johnny Griffin, among others; on the first of these, Work Song, Timmons did not appear on all of the tracks, because he had been drinking heavily.

What else was notable about this time period?

OUT:
Timmons became best known as a member of Art Blakey's band the Jazz Messengers, which he was first part of from July 1958 to September 1959,