This interactive visualization combines an equal-Earth projected world map with a brushed time-series histogram to explore historical space launches. Circles sized by launch frequency mark geographic sites, while a linked date histogram with a brush filter controls which launches appear on the map. The example uses React with d3-geo’s `geoEqualEarth` and `geoPath` for map rendering, d3-scale’s `scaleSqrt` for circle sizing, and d3-brush’s `brushX` for filtering. World topology comes from the World Atlas TopoJSON dataset.