This chart displays the cumulative global count of COVID-19 deaths over time as a single black line, with a marker line highlighting the point where deaths reach 6,000,000. It uses React with d3.scaleTime, d3.scaleLinear, and d3.line to generate an SVG path from a CSV dataset sourced via d3.csv from Johns Hopkins’ COVID-19 time series. Axis components employ d3.axisBottom and d3.axisLeft, with a line generator mapping dates to x-positions and death totals to y-positions.