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UK Chart Milestones

 
Since the inception of the UK Singles Chart in 1952 there have been various records to break, including most chart toppers, longest run at number one, biggest selling single etc.
All the records have changed hands over the years, some more than others and many have certain reasons as to why the records have been held by a certain act. Here are some of the most important records held by acts in the UK at the moment and also milestones in chart history.
14 November 1952
First chart was a top 12 compiled for the New Musical Express from a small selection of shops.
1954
7 inch vinyl 45 r.p.m. sinlges introduced
01 October 1954
NME chart becomes a Top 20
30 December 1955
NME chart becomes a Top 25 but for one week only
13 April 1956
NME chart becomes a Top 30
1959
Sales of vinyl 45s overtook 78s.
26 February 1960
Last NME chart used by all the Chart bibles such as the Guinness & Virgin books of Beitish Hit Singles
10 March 1960
Week ending 05 March data inaugurates the first Record Retailer chart used and becomes the unofficial but known as the official chart. The chart changed to Thursday publication.
03 Jan 1963
Top 50 now independently audited for Record Retalier
05 July 1967
Chart publication changed to Wednesdays.
13 February 1969
Top 50 now compiled for Record Retailer and the BBC by British Market Reserch Bureau and published to the public in the Record Mirror Magazine
09 August 1969
Chart publication changed to Saturdays
16 January 1971
Record Retailer became Record & Tape Retailer
06 February 1971
Postal strike respinsible for limited the chart to a Top 40 for seven weeks
27 March 1971
Top 50 resumes
18 March 1972
Record & Tape Retailer re-launched as Music Week
06 January 1973
Top 30 only for one week
22 December 1973
Top 30 only for one week
06 May 1978
Top 75 begins
1980
First cassette single released: C30, C60, C90 Go by Bow Wow Wow
08 January 1983
Chart compilation taken over by Gallup who increase the chart to Top 100 although positions 76 to 100 never published in Music Week
1987
First CD single released: Brother In Arms by Dire Straits. Chart announcement changed from Tuesday to Sunday on 04 October.
23 April 1991
Chart reduced to Top 75 due to decreasing singles sales.
1992
CD singles outsold vinyl & cassette for the first time
December 1992
Chart produced in association with BPI & BARD for CIN. Gallup's compilation is based on a minimum of 500 record outlets incorporating Vinyl, Cassette & CD singles
12 February 1994
Chart compilation taken over by Millward Brown and the sample of record ouitlets is increased to more than 1000
26 December 1999
Last Top 75 singles chart of the 20th century
2001
CIN changes its name to Official UK Charts Company
26 June 2004
First download chart announced
January 2005
Legal download singles sales exceeded CD singles for the first time
17 April 2005
The official UK Singles Chart incorporated legal downloads as well as physical sales in an attempt to boost flagging single sales.
The chart now also increases to become the Official Top 100.
05 September 2008
The Official UK Charts Company rebranded itself as The Official Charts Company (OCC)