This visualization displays weekly total deaths across all ages in England and Wales, plotted as a single red line over time. The data is loaded from a CSV file and aggregated by date. Built with React and D3 v7, it uses `scaleTime` and `scaleLinear` for axes, `d3.line` with `curveNatural` to draw the series, and SVG rendering for the chart. Axes are generated using D3's `ticks()` method.