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.
Alternatively, some considered the BBC's Pick of the Pops, which averaged all these charts, to be a better indicator of the number-one single.
[nb 1] 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.
[5] 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.