1971 United Kingdom postal workers strike

The strike was Britain's first national postal strike and began after postal workers demanded a pay rise of 15–20 per cent then walked out after Post Office managers made a lower offer.

The strike began on 20 January and lasted for seven weeks, finally ending with an agreement on 4 March.

Some were genuine commercial services that provided local, national and international deliveries, but many were set up by stamp collectors and stamp dealers to provide philatelic material for collectors.

[3] The progressive rock band Yes owes its success to the effects of the strike.

As a result, the album began selling well enough nationally that after the strike, when Melody Maker was able to resume publishing its charts, it reached No.