This visualization combines a world map with a timeline of major political events across different countries. The map uses a Mercator projection to display countries colored by GDP, population, or CO2 emissions with interactive tooltips, while a separate timeline shows events categorized as Political, Policy, or International. Built with D3 v7, the example uses `d3.geoMercator`, `d3.geoPath`, and TopoJSON data from world-atlas, with zoom functionality via `d3.zoom` for the map and scale time axes for the timeline.