Paul McCartney has a moped accident in Liverpool

In what would become one of the key 'clues' in the "Paul is Dead myth, on this day Paul McCartney suffered a moped accident while visiting his family in Liverpool.

McCartney fell from his moped and chipped a front tooth. He also cut his lip and was left with a scar.

Also on the night time ride was Tara Browne, McCartney's friend. Browne was the Guinness heir whose death later inspired John Lennon to write the opening lines of A Day In The Life.

Paul McCartney "I had an accident when I came off a moped in Wirral, near Liverpool. I had a very good friend who lived in London called Tara Browne, a Guinness heir - a nice Irish guy, very sensitive bloke. I'd see him from time to time, and enjoyed being around him. He came up to visit me in Liverpool once when I was there seeing my dad and brother. I had a couple of mopeds on hire, so we hit upon the bright idea of going to my cousin Bett's house.

We were riding along on the mopeds. I was showing Tara the scenery. He was behind me, and it was an incredible full moon; it really was huge. I said something about the moon and he said 'yeah', and I suddenly had a freeze-frame image of myself at that angle to the ground when it's too late to pull back up again: I was still looking at the moon and then I looked at the ground, and it seemed to take a few minutes to think, 'Ah, too bad - I'm going to smack that pavement with my face!' Bang!

There I was, chipped tooth and all. it came through my lip and split it. But I got up and we went along to my cousin's house. When I said, 'Don't worry, Bett, but I've had a bit of an accident,' she thought I was joking. She creased up laughing at first, but then she went 'Holy...!' I'd really given my face a good old smack; it looked like I'd been in the ring with Tyson for a few rounds. So she rang a friend of hers who was a doctor.

He came round on the spot, took a needle out and, after great difficulty threading it, put it in the first half of the wound. He was shaking a bit, but got it all the way through, and then he said, ''Oh, the thread's just come out - I'll have to do it again!' No anaesthetic. I was standing there while he rethreaded it and pulled it through again.

In fact that was why I started to grow a moustache. It was pretty embarrassing, because around that time you knew your pictures would get winged off to teeny-boppery magazines like 16, and it was pretty difficult to have a new picture taken with a big fat lip. So I started to grow a moustache - a sort of Sancho Panza - mainly to cover where my lip had been sewn.

It caught on with the guys in the group: if one of us did something like growing his hair long and we liked the idea, we'd all tend to do it. And then it became seen as a kind of revolutionary idea, that young men of our age definitely ought to grow a moustache! And it all fell in with the Sgt. Pepper thing, because he had a droopy moustache.