This chart displays world population over time using a filled area graph, with the y-axis representing population and the x-axis showing time. The visualization uses D3 v5’s `area` generator with a `curveBasis` smoothing, alongside `scaleTime` and `scaleLinear` for axes. Data comes from a CSV file loaded via `d3.csv`, and population values are formatted from billions to "B" using `d3.format`. The SVG rendering includes styled grid lines and axis labels.