This line chart visualizes the cumulative global COVID-19 death toll over time, using a linear Y-axis to show the raw magnitude of growth. The chart is rendered as an SVG in React, with D3’s `scaleTime` and `scaleLinear` mapping dates and death counts, while `axisBottom` and `axisLeft` generate the gridlines. Data comes from a JHU CSSE CSV file, parsed with `timeParse` and aggregated by summing daily country totals. A single black path, drawn with `d3.line`, traces the steep upward trajectory.