The chart displays global COVID-19 death totals over time as a black line, with horizontal and vertical dashed markers indicating the 3,000,000 death threshold and the current date. Built with React and d3.scaleTime, d3.scaleLinear, and d3.line, it renders an SVG path from data fetched via d3.csv from the Johns Hopkins CSSE repository. The YMarkerLine and XMarkerLine components draw labeled annotations, while the text elements use SVG alignment attributes to position labels. The visualization updates dynamically as new data becomes available in the source CSV.