This line chart displays the global cumulative death toll from COVID-19 over time, based on data from the Johns Hopkins Coronavirus Dataset. The visualization plots daily death totals on a linear y-axis against a time-scaled x-axis using d3.scaleTime and d3.scaleLinear, with the line generated via d3.line. Reference lines mark the 10,000-death threshold and the most recent date, implemented through custom React components. The SVG rendering is handled with D3 v5 and React, styled with minimal CSS.