Highlights of key events of the year, organized month by month, in three categories for easy reference: world, nation, and Business/Science/Society. See also Year in Review 2005, People in the News in 2005, Deaths in 2005 for obituaries, and Disasters in 2005. Countries of the World covers specific international events, country by country.

Test your knowledge of 2005 events with our Year in Review: 2005 Quizzes.