This bar chart displays sentiment analysis results, showing the number of thumbs-up votes for each review date. The visualization uses React and D3 v5 to render an SVG with a band scale for the x-axis and a linear scale for the y-axis. The code loads CSV data via `d3.csv`, then creates rectangular marks using `Marks.js`, with axes built through custom `AxisBottom` and `AxisLeft` components. Each bar includes a native SVG `<title>` tooltip showing the exact thumb count.