This histogram displays the monthly total of dead and missing migrants over time, with each bar representing a month and its height reflecting the aggregated count. The visualization uses React components and D3 v5 APIs including `scaleTime`, `scaleLinear`, and `histogram` to bin data by month and sum values. Rectangular marks render as SVG elements with tooltips showing exact counts and dates. The underlying data comes from the Data Canvas Sense Your City Dataset on missing migrants.