King Charles tells summit the past can’t be changed as leaders ask Britain to reckon with slavery NPRKing Charles acknowledges ‘painful’ history as he opens Commonwealth summit CNNKing Charles acknowledges ‘painful’ slavery past as calls for reparations intensify ReutersUK ‘open to discussing non-cash forms of reparatory justice’ for former colonies The GuardianBritain’s leaders likely to face slavery reparations questions at a summit of former colonies The Associated Press