UK Albums Chart - Wikipedia
https://en.wikipedia.org/wiki/UK_Albums_ChartAccording to the canon of the OCC, the official British albums chart was the Record Mirror chart from 22 July 1956 to 1 November 1958; the Melody Maker chart from 8 November 1958 to March 1960; the Record Retailer chart from 1960 to 1969; and the Official Albums Chart from 1969 on. For eight weeks in February and March 1971 no Official Albums Chart was compiled due to a postal strike - for this period, the OCC uses the chart compiled by Melody Maker instead.
UK Albums Chart - Wikipedia
en.wikipedia.org › wiki › UK_Albums_ChartThe Official Albums Chart is a list of albums ranked by physical and digital sales and (from March 2015) audio streaming in the United Kingdom.It was published for the first time on 22 July 1956 and is compiled every week by the Official Charts Company (OCC) on Fridays (previously Sundays).