 Although Fleming provided no dates within his novels , two writers have identified different timelines based on events and situations within the novel series as a whole . John Griswold and Henry Chancellor — both of whom have written books on behalf of Ian Fleming Publications — put the events of Casino Royale in 1951 ; Griswold allows a possible second timeframe and considers the story could have taken place in either May to July 1951 , or May to July 1952 . 
