Historical clue formulations

• Song that Paul McCartney wrote at 16 — 2016-01-01
• Sexagenarian's favorite Beatles song? — 2015-04-13
• Song from the Beatles' "Sgt. Pepper" album — 2003-01-11
• Beatles hit of 1967 — 2002-07-09
• Song from the Beatles' "Sgt. Pepper" album — 1997-03-02