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The UK Singles Chart is the official record chart in the United Kingdom. Record charts in the UK began life in 1952 when Percy Dickins from ''New Musical Express'' (''NME'') imitated an idea started in American ''Billboard'' magazine and began compiling a hit parade. Prior to this, a song's popularity was measured by the sales of sheet music.〔〕 Initially, Dickins telephoned a sample of around 20 shops asking for a list of the 10 best-selling songs. These results were then aggregated to give a Top 12 chart published in ''NME'' on 14 November 1952.〔〔 The number-one single was "Here in My Heart" by Al Martino. According to The Official Charts Company and Guinness' British Hit Singles & Albums, the ''NME'' is considered the official British singles chart before 10 March 1960. However, until 15 February 1969, when the British Market Research Bureau chart was established, there was no universally accepted chart. Other charts existed and different artists may have placed at number one in charts by ''Record Mirror'', ''Disc'' or ''Melody Maker''. Alternatively, some considered BBC's ''Pick of the Pops'', which averaged all these charts, to be a better indicator of the number-one single.〔 In terms of number-one singles, Frankie Laine, Guy Mitchell and Elvis Presley were the most successful artists of the 1950s having four singles reach the top spot. The longest duration of a single at number one was eighteen weeks achieved by Frankie Laine's "I Believe". , "I Believe" still holds the record for the most (non-consecutive) weeks at the top of the UK Singles Chart. Although official music recording sales certifications were not introduced until the British Phonographic Industry was formed in 1973, ''Disc'' introduced an initiative in 1959 to present a gold disc to records that sold over one million units. Prior to that it is believed that the three best-selling records of the decade—Bill Haley & His Comets' "Rock Around the Clock", Paul Anka's "Diana" and Harry Belafonte's "Mary's Boy Child"—all sold over one million copies.〔〔(【引用サイトリンク】url=http://www.everyhit.com/awardmill.html )〕 ==Number-one singles== ;Key : – Best-selling single of the year〔(【引用サイトリンク】title=Chart Archive – 1950s Singles )〕 : – Best-selling single of the decade〔 : – The song spent a week at number one where it shared the top spot with another song. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「List of UK Singles Chart number ones of the 1950s」の詳細全文を読む スポンサード リンク
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