This area chart visualizes world population growth over time, using a filled path to emphasize the rising trend. The code loads CSV data and parses years as dates, then renders an SVG with D3 v5’s `scaleTime`, `scaleLinear`, `area`, `curveBasis`, and axis generators. Population values are formatted in billions via `format('.1s')`, while grid lines and rotated labels clarify the axes. The chart is titled “World Population” and colors the area maroon against a clean background.