This bar chart displays the populations of eleven countries, sourced from Wikipedia data. The visualization uses D3 v5 to render SVG elements, with a linear scale for the population axis and a band scale for the categorical country axis. Rectangles are drawn for each data point, and the chart includes axis labels generated via `axisLeft` and `axisBottom`. The data is loaded from a CSV file using D3's `csv` function, which is then parsed and rendered dynamically.