Organisers of an art project have apologised after they were "misled" by the "famous Liverpudlian sense of humour".
Liverpool Discovers was forced to apologise after it published claims in a tour guide that Martin Luther King Jnr's "I have a dream" speech was penned in Liverpool's Adelphi Hotel.
It is understood that the tourist pamphlet claimed Martin Luther King visited supporters in Liverpool three times and the first draft of his famous speech is alleged to have been written on Adelphi Hotel notepaper.
The art project, which was set up to "celebrate the greatest stories seldom told about one of the world's most interesting and best-loved cities", issued the apology after biographers of Martin Luther King Jnr cast doubt on the claims.
A spokeswoman for Liverpool Discovers said: "Firstly, we'd like to offer our apologies to the public if we have accidentally mislead anyone or caused offence through the publication of this information."
Liverpool Discovers is a public trail that tells the stories of the city from its people through art.
The spokeswoman said: "All the information published in our literature has come from a lengthy public consultation where the people of Liverpool were asked to tell their stories about the city. This was then verified by local historians."
She added: "We do recognise on this occasion that maybe the famous Liverpudlian sense of humour has had the last laugh but this is why we do use the word 'alleged' in relation to the information and are in no way trying to rewrite history or make factual claims about information that may or may not be correct."