1990 Strangeways Prison riot injured. The Strangeways riot caused a number of protests at prisons across England, Scotland and Wales, described as either solidarity actions or copycat riots. Approximately 100 remand prisoners at HM Prison Hull staged a sit-down protest in the exercise yard on 1 April, after hearing about the Strangeways riot on the radio. Disturbances occurred the same day at HM Prison Gartree, HM Prison Kirkham and HM Prison Rochester, although the Gartree protest had started three days earlier over conditions in the prison. There were minor disturbances at HM Prison Lindholme, HM Prison Low Newton and HM Prison Bedford on 2
World Book Day (UK and Ireland) observed on 23 April - it was changed in the UK to avoid clashes with Easter school holidays and with St George's Day. Conversely, a separate event World Book Night organized by independent charity The Reading Agency is held on 23 April. The United Kingdom's own version of World Book Day began in 1998, launched by Prime Minister Tony Blair at the Globe Theatre in London. Several million schoolchildren in the UK were given a special £1 World Book Day Book Token (€1.50 in Ireland) which could be redeemed against any book in any UK bookshop. A specially created WBD