This was The Beatles' second day of sightseeing in Greece. Their yacht was held up by a storm off Crete until 25 July 1967, leaving them stuck in Athens for a few days.
Monday 24 July 1967
A full-page advertisement appeared in The Times newspaper on this day, signed by 64 of the most prominent members of British society, which called for the legalisation of marijuana. Among the signatories were The Beatles and Brian Epstein.