1 the identity element of a group in which the operation is addition. ( of a function, especially of a function of a complex variable) a point at which a given function, usually a function of a complex variable, has the value zero; a root.
James Paul McCartney was born on 18 June 1942 in Walton Hospital, Liverpool, England, where his mother, Mary Patricia (nÃ©e Mohin; 1909â1956), had qualified to practise as a nurse.
Paul McCartney met John Lennon at the Woolton fete on 6 July 1957, between performances by The Quarrymen. They became friends and began writing and performing songs together. McCartney later persuaded Lennon to allow George Harrison into the band as lead guitarist in 1958.