This article addresses the question of the applicability of John Kingdon's theory of agenda-setting to Canadian political life. It examines the extent to which agenda-setting in Canadian governments is routine or discretionary, predictable or unpredictable, and the extent to which it is influenced by events and activities external to itself. The study uses time series data collected on issue mentions related to Native affairs, the constitution, drug abuse, acid rain, the nuclear industry and capital punishment in parliamentary debates and committees between 1977 and 1992. It compares these series to other time series developed from media mentions, violent crime rates, unemployment rates, budget speeches and speeches from the throne, elections and first ministers' conferences over the same period in order to assess the impact of such events on public policy agenda-setting.