This line chart displays the total global COVID-19 deaths over time, based on data from the CSSE at Johns Hopkins University. It includes a vertical marker at the most recent date and a horizontal reference line at 6.5 million deaths. The visualization is built with React and D3 v5, using `scaleTime`, `scaleLinear`, and the `line` generator to render an SVG path. The CSV data is loaded and transformed with `d3.csv` and `timeParse`.