This chart displays cumulative COVID-19 deaths over time, drawn as a thick black line on an SVG canvas. The y-axis is linear, with a horizontal marker at 10,000 deaths, while a vertical marker highlights the most recent date. Built with React and D3 v5, it uses `d3.scaleTime`, `d3.scaleLinear`, and `d3.line` to generate the path, with data sourced from the Johns Hopkins Coronavirus Dataset. Axis ticks are rendered via `d3.axisBottom`, and marker lines are custom React components.