Geography, Footprints & Linguistic Graphs
Maps and graphs offer the most intuitive coordinates for understanding human civilization and language evolution. Map your global journeys or decode millennia of linguistic diffusion across continents.
World Country Footprint Tracker
Track Visited Nations & TerritoriesPin and highlight countries and territories you have explored worldwide. Features interactive SVG globe projection, regional checklists across five continents, travel stats, and instant shareable footprint cards.
Japan 47 Prefecture Level Map
Japan Prefecture Tracker (制县传说)Interactive 47-prefecture travel map tracking 6 levels of visitation: Lived, Stayed, Visited, Transited, Passed, and Unvisited. Calculates your total prefecture score (out of 235) and generates your custom passport card.
Global Visa Requirements Map
Passport Visa-Free & VoA PoliciesInteractive worldwide visa policy map: unilateral exemptions, mutual visa waivers, Visa-on-Arrival (VoA), electronic visas (e-Visa), and transit exemption policies across 180+ global destinations.
World Language Relationship Graph
Interactive Language Knowledge GraphForce-directed knowledge graph mapping living and extinct languages. Each node represents a language; lines reveal millennia-old borrowing pathways, grammar loans, and genealogical connections.
Evolution of Writing Systems
Origins & Diffusion of Global ScriptsTrace the 5,000-year genealogy of global scripts from Egyptian hieroglyphs and Sumerian cuneiform to Phoenician, Greek, Latin, Cyrillic, Aramaic, Brahmi, and Chinese character systems.