In 2007 Liverpool's annual Writing on the Wall arts festival explored the legacy of slavery through words, music, lyrics, song, dance and discussion. Authors, campaigners and social commentators explored the themes of the bicentenary and Liverpool's 800th birthday. The festival aimed to celebrate diversity and promote inter-cultural tolerance. Speakers included one of the nine Britons detained in Guantanamo, Cuba. Among the performers was dub poet Benjamin Zephaniah joined by Jean 'Binta' Breeze and Levi Tafari, and featuring the MDI African Dancers for an 'extravaganza of rhythm and rhyme' at the Royal Philharmonic Hall. Liverpool Young Writers was launched by Writing on the Wall in 2007. Members have recently performed at Slavery Remembrance Day and the International Slavery Museum.