A map of missing migrant incidents and a time histogram show the same dataset, with brushing the histogram filtering the circles displayed on the map. The application uses React for structure and D3 v7 for scales, projections, and geographic paths via `geoNaturalEarth1`. A `brushX` selection on the date histogram, which aggregates deaths per month, updates the bubble map’s filtered data in real time. Data comes from a CSV of global missing migrant records.