McCartney was unhappy with the producer's approach and particularly dissatisfied with the lavish orchestration on "The Long and Winding Road", which involved a fourteen-voice choir and 36-piece instrumental ensemble. McCartney's demands that the alterations to the song be reverted were ignored, and he publicly announced his departure from the band on 10 April 1970, a week before the release of his first, self-titled solo album.
The Conservative Party led by Edward Heath won the 1970 general election, and Thatcher was subsequently appointed to the Cabinet as Secretary of State for Education and Science. Thatcher caused controversy when after only a few days in office she withdrew Labour's Circular 10/65 which attempted to force comprehensivisation, without going through a consultation progress.
Charles broke royal tradition a second time when he proceeded straight to university after his A-levels, rather than joining the British Armed Forces. In October 1967, he was admitted to Trinity College, Cambridge, where he read anthropology, archaeology, and history. During his second year, Charles attended the University College of Wales in Aberystwyth, studying Welsh history and language for a term. He graduated from Cambridge with a 2:2 Bachelor of Arts on 23 June 1970, the first heir apparent to earn a university degree.