This interactive visualization combines a world map of migrant deaths with a time-series histogram, linked through brushable selection. Users can brush a date range in the histogram to filter the map’s proportional circles, which represent monthly totals of dead and missing migrants. The map uses `geoNaturalEarth1` and `geoPath` from d3, while the histogram employs `scaleTime`, `brushX`, and `bin` for aggregation. City and country boundary data come from World Atlas TopoJSON and Simplemaps subsets, rendered as SVG within a React framework.