A line chart tracks the cumulative global death toll from the Johns Hopkins Coronavirus Dataset over time, with a bold black stroke and labeled axes. The chart’s Y-axis is annotated with a marker line at 10,000 deaths, while gridlines extend across the plot. Built with React and D3 v5, it uses `scaleTime`, `scaleLinear`, and a `line` generator within an SVG, with `axisBottom` and `axisLeft` for ticks.