The Rolling Stones’ Mick Jagger and Keith Richards have marked the 60th anniversary of their first proper meeting.The singer and the guitarist engaged in conversation for the first time on platform two of Dartford station on October 17, 1961 – a blue plaque commemorating the moment was unveiled back in 2015 – before they formed the Stones the following year.Jagger and Richards marked the 60th anniversary of that famous meeting last night (October 17) during their gig at the SoFi Stadium in