This visualization presents a date histogram of the monthly sum of dead and missing migrants, using data from the Missing Migrants Dataset. The chart aggregates reported incidents by month, with bar heights representing the total casualties per time period. The code uses React with D3 v5 functions including `d3.bin` to create monthly bins, `d3.sum` to aggregate values, and `d3.scaleTime` and `d3.scaleLinear` for the axes. The SVG rendering includes custom axis components and rect marks with tooltip titles, all styled with CSS.