A line chart tracks global cumulative COVID-19 deaths over time for each country, using a logarithmic y-axis to handle the wide range of values. The chart plots a single dark path representing the total deaths across all countries, with a red dashed marker line highlighting the 10,000-death threshold. The visualization is built with React and D3 v6, using `scaleTime` and `scaleLog` to map dates and death totals, and `line()` to generate the SVG path. Data comes from the CSSEGISandData COVID-19 time-series CSV, loaded via `d3.csv` and transformed with `timeParse`.