Encyclopedias, Almanacs, Transcripts, and Maps
- The International Atomic Energy Agency (IAEA)
- The International Civil Aviation Organization (ICAO)
- The International Court of Justice
- The International Fund for Agricultural Development (IFAD)
- The International Maritime Organization (IMO)
- The International Monetary Fund (IMF)
- The International Telecommunication Union (ITU)
- The Invasion of South Korea: June 25–30, 1950
- The Islamic World
- The Jewish World
- The Jewish World
- The Joint Chiefs of Staff
- The Julias of Rome
- The Key West Agreement
- The Late Middle Ages
- The Limbourg Brothers
- The Limited Test Ban Treaty
- The Lowell Offering
- The Luddites and Charlotte Brontë
- The Lumière Brothers