On this day in 1969, Led Zeppelin played at the Boston Tea Party. The venue host was Don Law, who had established what was to be known as a bastion of underground music. It was during this run of concerts that we were to play a three and a half hour set – this became quite legendary on the musical grapevine – but the audience just wouldn’t let us go and Don Law was quite clearly a cool promoter.

Also today, in 1996, Page and Plant played in Santiago, Chile. My memories of this are of a testy moment when a power cut interfered with the starting time of the show, but it was a passionate audience that night. Two members of the production crew - Rex King and Rex King - who were serial sun-worshippers by day, were caught out by the sun on that occasion and were burnt by the pool. A message went round to all of us not to underestimate the sun’s intensity in Santiago and, fortunately, the show was in the evening.