World Factbook Archive

Explore the archive with deeper Analysis, a new game, and colors you can make your own. • Richer Analysis: explore Resources, Development and Demographics through topic cards, country comparisons, edition histories and original sources. Compare listed resources, inspect energy readings and explore population pyramids. Units, estimate years and missing data remain clear. • Political Changes: follow the archive-wide Timeline, compare before/after passages and save cited research to Collections. Changes describe the Factbook's wording between editions, not assumed political events. • Rank the World: our eighth game asks you to put countries in order by their facts. Start with 2025 or choose another edition, check your order and read the source. • Your edition, your game: use compact year pickers and offline reference maps for 1990–2024 in Border Explorer and Mystery Country, with matching Daily practice outlines. Historical Daily practice stays separate from today's score and streak. Guess the Year keeps its answer hidden. • Make it your own: choose map and chart palettes or custom colors independently of your reading theme. Try the new Cream and Soft Gray appearances. • Clearer everyday use: improved Analysis navigation, readable map labels and country pins, more reliable hints, source links after answers, and better small-screen and large-text layouts. The complete 1990–2025 archive and 284 CIA maps remain available offline. Historical map sources and geographic approximations are explained in the app; facts stay tied to their original editions.