Manchester Cathedral held an exhibition on the abolitionist Thomas Clarkson in 2007. Clarkson was invited to preach a sermon at the Collegiate Church (which became Manchester Cathedral) in 1787, a sermon which had a profound impact on public opinion and support for anti-slavery societies in the city. Clarkson's name was recorded in the 'Book of Strange Preachers at the Collegiate Church, Manchester', on display at the exhibition.