This area chart visualizes average life expectancy by year from a brain stroke dataset, rendered as an orange, curved path over a time-scaled x-axis. The code uses D3 v5 to load CSV data, construct scales with `scaleTime` and `scaleLinear`, and generate the area path via `area()` with `curveBasis`. The SVG chart includes titled axes, gridlines, and labels, sourced from a gist CSV file.