This example shows global migrant deaths using a natural Earth projection world map, where circles sized by the square root of total dead and missing are placed at recorded coordinates. A linked time-series histogram below displays monthly death totals, and brushing a date range on the histogram filters the map’s circles in real time. The visualization uses React with hooks like `useMemo` for efficient re-renders, D3 v5 APIs including `geoNaturalEarth1`, `geoPath`, `scaleSqrt`, `brushX`, and `histogram`, and renders as SVG. Data comes from the Missing Migrants Global subset, with country boundaries from World Atlas TopoJSON.