This line chart shows cumulative COVID-19 death totals for each country over time, with every country represented as a separate colored path. The chart uses an SVG rendering with React components, while D3’s `scaleTime`, `scaleLinear`, and `line` generator handle the axes and path construction. Data is loaded from the CSSEGISandData GitHub repository via `d3.csv`, and the Y-axis uses D3’s `axisLeft` with tick formatting to display compact death counts. Multiple countries are rendered simultaneously, allowing visual comparison of pandemic trajectories.