A world map displays migrant deaths and missing persons by location, with circle size scaled to the count. A synchronized date histogram below supports brush selection, filtering the map’s circles in real time. Built with React, D3 v5, and SVG, it uses `d3.geoNaturalEarth1` and `d3.geoPath` for the map, `d3.brushX` for brushing, and `useMemo` for performance. Data comes from the Missing Migrants Project and World Atlas TopoJSON.