A line chart displays global cumulative COVID-19 deaths over time using a log-scaled y-axis to accommodate exponential growth. The visualization marks the 10,000-death threshold with a tomato-colored reference line. Data comes from the CSSEGISandData COVID-19 time-series dataset, loaded via `d3.csv` and transformed with reactive React state. React components render the SVG, while D3 v6 functions `scaleTime`, `scaleLog`, `line`, `axisBottom`, and `axisLeft` generate the axes, path, and gridlines.