Background: Iron Maiden are an English heavy metal band formed in Leyton, East London, in 1975 by bassist and primary songwriter Steve Harris. The band's discography has grown to thirty-eight albums, including sixteen studio albums, twelve live albums, four EPs, and seven compilations. Pioneers of the new wave of British heavy metal, Iron Maiden achieved initial success during the early 1980s. After several line-up changes, the band went on to release a series of UK and US platinum and gold albums, including 1982's The Number of the Beast, 1983's Piece of Mind, 1984's Powerslave, 1985's live release Live
Context: Iron Maiden were formed on Christmas Day in 1975 by bassist Steve Harris shortly after he left his previous group, Smiler. Harris attributes the band's name to a film adaptation of The Man in the Iron Mask from the novel by Alexandre Dumas, the title of which reminded him of the iron maiden torture device. After months of rehearsal, Iron Maiden made their debut at St. Nicks Hall in Poplar on 1 May 1976, before taking up a semi-residency at the Cart and Horses Pub in Maryland Point, Stratford. The original line-up did not last very long, however, with vocalist Paul Day being the first casualty as, according to Harris, he lacked "energy or charisma on stage". He was replaced by Dennis Wilcock, a Kiss fan who used make-up and fake blood during live performances. Wilcock's friend Dave Murray was invited to join, to the dismay of the band's guitarists Dave Sullivan and Terry Rance. Their frustration led Harris to temporarily disband Iron Maiden in 1976, though the group reformed soon after with Murray as the sole guitarist. Steve Harris and Dave Murray remain the band's longest-standing members and have performed on all of their releases. Iron Maiden recruited yet another guitarist in 1977, Bob Sawyer, who was sacked for embarrassing the band on stage by pretending to play guitar with his teeth. Tension ensued again, causing a rift between Murray and Wilcock, who convinced Harris to fire Murray, as well as original drummer Ron Matthews. A new line-up was put together, including future Cutting Crew member Tony Moore on keyboards, Terry Wapram on guitar, and drummer Barry Purkis (better known today as Thunderstick). A bad performance at the Bridgehouse, a pub located in Canning Town, in November 1977 was the line-up's first and only concert and led to Purkis being replaced by Doug Sampson. At the same time, Moore was asked to leave as Harris decided that keyboards did not suit the band's sound. A few months later, Dennis Wilcock decided that he had had enough with the group and left to form his own band, V1, and Dave Murray was immediately reinstated. As he preferred to be the band's sole guitarist, Wapram disapproved of Murray's return and was also dismissed. Steve Harris, Dave Murray and Doug Sampson spent the summer and autumn of 1978 rehearsing while they searched for a singer to complete the band's new line-up. A chance meeting at the Red Lion pub in Leytonstone in November 1978 evolved into a successful audition for vocalist Paul Di'Anno. Steve Harris has stated, "There's sort of a quality in Paul's voice, a raspiness in his voice, or whatever you want to call it, that just gave it this great edge." At this time, Murray would typically act as their sole guitarist, with Harris commenting, "Davey was so good he could do a lot of it on his own. The plan was always to get a second guitarist in, but finding one that could match Davey was really difficult."
Question: Why did Paul Day leave?
Answer: he lacked "energy or charisma on stage".

Background: Oscar Leonard Carl Pistorius was born to Henke and Sheila Pistorius on 22 November 1986 in Sandton, Johannesburg, in what was then Transvaal Province (now Gauteng Province) of South Africa. He grew up in a Christian home and has an elder brother, Carl, and a younger sister, Aimee. Pistorius credits his mother, who died at the age of 43 when Pistorius was 15 years old, as a major influence in his life. Pistorius is a white South African with Italian ancestry from his maternal great-grandfather, who was an Italian emigrant to Kenya.
Context: Pistorius competed in T44 (single below-knee amputees) events though he is actually classified in T43 (double below knee amputee). Sometimes referred to as the "Blade Runner" and "the fastest man on no legs", Pistorius took part in the 2004 Summer Paralympics in Athens and came third overall in the T44 (one leg amputated below the knee) 100-metre event. Despite falling in the preliminary round for the 200 metres, he qualified for the final. He went on to win the final in a world record time of 21.97 seconds, beating a pair of American runners both possessing a single amputation, Marlon Shirley and Brian Frasure. In 2005, Pistorius finished sixth in the non-disabled South African Championships over 400 metres with a world-record time of 47.34 seconds, and at the Paralympic World Cup in the same year, he won gold in the 100 metres and 200 metres, beating his previous 200-metre world record. At the 2006 IPC Athletics World Championships, Pistorius won gold in the 100-, 200- and 400-metre events, breaking the world record over 200 metres. On 17 March 2007, he set a disability sports world record for the 400 metres (46.56 seconds) at the South African Senior Athletics Championships in Durban; and at the Nedbank Championships for the Physically Disabled held in Johannesburg in April 2007, he became the world record holder of the 100- and 200-metre events with times of 10.91 and 21.58 seconds respectively. Pistorius was invited by the IAAF to take part in what would have been his first international non-disabled event, the 400-metre race at the IAAF Grand Prix in Helsinki, Finland, in July 2005. He was unable to attend, however, because of school commitments. On 13 July 2007, Pistorius ran in the 400-metre race at Rome's Golden Gala and finished second in run B with a time of 46.90 seconds, behind Stefano Braciola who ran 46.72 seconds. This was a warm-up for his appearance at the 400 metres at the Norwich Union British Grand Prix at the Don Valley Stadium in Sheffield on 15 July 2007. As American Olympic champion Jeremy Wariner stumbled at the start of the race and stopped running, Pistorius took seventh place in a field of eight in wet conditions with a time of 47.65 seconds. However, he was later disqualified for running outside his lane. The race was won by American Angelo Taylor with a time of 45.25 seconds. Pistorius had ambitions of competing in other non-disabled events. In particular, he had set his sights on competing at the 2008 Summer Olympics in Beijing, China, but was ultimately not selected by the South African Olympic Committee (see below).
Question: Are there any other interesting aspects about this article?
Answer:
He went on to win the final in a world record time of 21.97 seconds, beating a pair of American runners both possessing a single amputation,