Background: Jonas Edward Salk (; October 28, 1914 - June 23, 1995) was an American medical researcher and virologist. He discovered and developed one of the first successful polio vaccines. Born in New York City, he attended New York University School of Medicine, later choosing to do medical research instead of becoming a practicing physician. In 1939, after earning his medical degree, Salk began an internship as a physician scientist at Mount Sinai Hospital.
Context: In 1947, Salk became ambitious for his own lab and was granted one at the University of Pittsburgh, but the lab was smaller than he had hoped and he found the rules imposed by the university restrictive. In 1948, Harry Weaver, the director of research at the National Foundation for Infantile Paralysis, contacted Salk. He asked Salk to find out if there were more types of polio than the three then known, offering additional space, equipment and researchers. For the first year he gathered supplies and researchers including Julius Youngner, Byron Bennett, L. James Lewis, and secretary Lorraine Friedman joined Salk's team, as well. As time went on, Salk began securing grants from the Mellon family and was able to build a working virology laboratory. He later joined the National Foundation for Infantile Paralysis's polio project established by President Franklin D. Roosevelt. Extensive publicity and fear of polio led to much increased funding, $67 million by 1955, but research continued on dangerous live vaccines. Salk decided to use the safer 'killed' virus, instead of weakened forms of strains of polio viruses like the ones used contemporarily by Albert Sabin, who was developing an oral vaccine. After successful tests on laboratory animals, on July 2, 1952, assisted by the staff at the D.T. Watson Home for Crippled Children, Salk injected 43 children with his killed-virus vaccine. A few weeks later, Salk injected children at the Polk State School for the retarded and feeble-minded. In 1954 he tested the vaccine on about one million children, known as the polio pioneers. The vaccine was announced as safe on April 12, 1955. The project became large, involving 100 million contributors to the March of Dimes, and 7 million volunteers. The foundation allowed itself to go into debt to finance the final research required to develop the Salk vaccine. Salk worked incessantly for two and a half years. Salk's inactivated polio vaccine was the first vaccine for the disease; it came into use in 1955. It is on the World Health Organization's List of Essential Medicines, the most effective and safe medicines needed in a health system.
Question: What did he discover in his research?
Answer: The vaccine was announced as safe on April 12, 1955.

Background: Bobby Darin (born Walden Robert Cassotto; May 14, 1936 - December 20, 1973) was an American singer, songwriter, multi-instrumentalist, and actor in film and television. He performed jazz, pop, rock and roll, folk, swing, and country music. He started his career as a songwriter for Connie Francis.
Context: Born Walden Robert Cassotto in the East Harlem neighborhood of New York City, Bobby Darin was reared by his maternal grandmother, whom he believed was his mother. Darin's birth mother, Vanina Juliette "Nina" Cassotto (born November 30, 1917), became pregnant with him in the summer of 1935 when she was 17. Presumably because of the scandalous nature of out-of-wedlock pregnancies in that era, Nina and her mother hatched a plan to pass her baby off as Nina's younger brother. Years later, when Nina finally told Darin the truth about his upbringing, she refused to reveal the identity of his biological father, and kept the secret to her death in 1983. Darin's maternal grandfather, Saverio Antonio "Big Sam Curly" Cassotto (born January 26, 1882), was of Italian descent and a would-be mobster who died in prison from pneumonia a year before Darin's birth. His maternal grandmother, Vivian Fern Walden (also born in 1882), who called herself Polly, was of English ancestry and a vaudeville singer. From his birth, Darin always believed Nina to be his older sister and Polly his mother. But in 1968, when he was 32, Nina told Darin the truth, reportedly devastating him. By the time he was a teenager, Darin could play several instruments, including piano, drums, and guitar. He later added harmonica and xylophone. Darin moved to the Bronx early in his life (with a rented summer home in Staten Island) and graduated from the prestigious Bronx High School of Science. In later years he attributed his arrogance to his experiences there, where he was surrounded by brighter students who teased him. He then enrolled at Hunter College and soon gravitated to the drama department. After only two semesters, he dropped out to pursue an acting career.
Question: What was his major?
Answer: gravitated to the drama department.

Background: Abbey Road is the eleventh album by English rock band the Beatles, released on 26 September 1969 by Apple Records. The recording sessions for the album were the last in which all four Beatles participated. Although Let It Be was the final album that the Beatles completed before the band's dissolution in April 1970, most of the album had been recorded before the Abbey Road sessions began. A double A-side single from the album, "Something"/"Come
Context: The front cover design, a photograph of the group on a zebra crossing, was based on ideas sketched by McCartney, and taken on 8 August 1969 outside EMI Studios in Abbey Road. At 11:35 that morning, photographer Iain Macmillan was given only ten minutes to take the photo whilst he stood on a step-ladder and a policeman held up traffic behind the camera. Macmillan took six photographs, which McCartney later examined with a magnifying glass before deciding which of the shots would be used upon the album sleeve. In the image selected by McCartney, the group walk across the street in single file from left to right, with Lennon leading, followed by Starr, McCartney, and Harrison. McCartney is barefoot and out of step with the other members. Apart from Harrison, the group are wearing suits designed by Tommy Nutter. To the left of the picture, parked next to the zebra crossing, is a white Volkswagen Beetle which belonged to one of the people living in the block of flats across from the recording studio. After the album was released, the number plate (LMW 281F) was stolen repeatedly from the car. In 1986, the car was sold at auction for PS2,530 and in 2001 was on display in a museum in Germany. The man standing on the pavement to the right of the picture is Paul Cole (7 July 1911 - 13 February 2008), an American tourist unaware he had been photographed until he saw the album cover months later. On the original cover, McCartney holds a cigarette; in 2003 several US poster companies airbrushed this cigarette out of the image, without permission from either Apple or McCartney. Shortly after the album's release the cover became part of the "Paul is dead" rumour that was spreading across college campuses in the United States. According to followers of the rumour, the cover depicted the Beatles walking out of a cemetery in a funeral procession. The procession was led by Lennon, dressed in white, as a religious figure, Starr, dressed in black, as the undertaker, McCartney, out of step with the others, as a barefoot corpse and Harrison, dressed in denim, as the gravedigger. The left-handed McCartney is holding a cigarette in his right hand, said to indicate an imposter and the license plate on the Volkswagen parked on the street is 28IF, meaning McCartney would have been 28 if he had lived.
Question: Why was that rumor spreading
Answer:
rumour, the cover depicted the Beatles walking out of a cemetery in a funeral procession.