This interactive visualization combines a world bubble map and a time-series histogram, both rendered as SVG using React and D3 v5. It displays data on dead and missing migrants from the Missing Migrants Global 2019 subset, with the map using the `geoNaturalEarth1` projection and `geoPath` to render land and graticules. Users can brush the histogram to filter the cities shown on the map, with circle sizes scaled by the square-root of casualties. The histogram bins by month via `histogram`, and the brush extent controls data filtering through a React state update.