This horizontal bar chart displays the population of the top 10 countries in the year 2000. Built with React and D3 v5, it uses `scaleBand` for the categorical country axis and `scaleLinear` for the population scale, rendering SVG rectangles for each bar. Data is loaded via D3’s `csv` parser from a GitHub-hosted CSV file, with population values converted from thousands. The visualization includes formatted tick labels (using `format('.2s')`), axis components, and tooltips showing exact population figures via SVG `<title>` elements.