The chart plots the cumulative death toll from the Johns Hopkins Coronavirus Dataset over time on a linear y-axis, using a black stroke line. Built with React and D3 v5, it applies `scaleTime` for dates, `scaleLinear` for deaths, and `line` generators to render the SVG path. Gridlines are drawn via `axisBottom` and `axisLeft` with negative tick sizes, while the README includes an embedded YouTube video.