This example displays a world population area chart over time, using a maroon filled path with a smooth curve to emphasize the data’s upward trend. The SVG rendering relies on D3 v5’s `area`, `scaleTime`, `scaleLinear`, `axisLeft`, and `axisBottom` APIs, with data loaded from a CSV file. The y-axis labels are formatted in billions, and the x-axis labels are rotated vertically for readability, alongside custom tick grids and a descriptive title.