This chart displays the global cumulative number of COVID-19 deaths over time, using a line graph with a linear y-axis. The data is loaded from the Johns Hopkins COVID-19 dataset via `d3.csv`, then transformed by summing daily death totals across all countries. The visualization uses `d3.scaleTime` for the x-axis and `d3.scaleLinear` for the y-axis, with the line generated by `d3.line`. Axes are rendered using `d3.axisBottom` and `d3.axisLeft` within a React component, output as SVG with gridlines.