A line chart tracks the cumulative global death toll from COVID-19 over time, using a linear y-axis scale so the growth in fatalities is directly proportional to height. The chart reads data from the Johns Hopkins Coronavirus Dataset, with daily global totals aggregated from country-level rows. Built with React and D3 v5, it uses `d3.scaleTime` and `d3.scaleLinear` to map dates and death counts, while `d3.line` generates the SVG path. Axes are rendered via `d3.axisBottom` and `d3.axisLeft`, and the chart fills the entire browser window.