This visualization is a histogram representing the total number of dead and missing migrants over time, using data from the Data Canvas Sense Your City Dataset. The chart displays time on the x-axis and the cumulative count on the y-axis. The code uses D3 v5’s `histogram` binning function to aggregate data into monthly bins, `scaleTime` for the temporal axis, and `scaleLinear` for the count axis. React components render the SVG axes and marks, with tooltips showing the total per bin.