This interactive treemap infographic visualizes global deaths across the 20th century, using nested hierarchical groupings by cause, subcause, and specific event. Built with D3 v2 and rendered as SVG, the visualization animates the proportional scale of mortality from famines, natural disasters, and extreme weather events, with each rectangle sized by reported death toll. The treemap layout encodes the data hierarchically—starting with broad causes, then subcauses, and finally individual recorded events—allowing viewers to compare the relative magnitude of different tragedies, from the 30 million deaths in China’s 1958-62 famine to smaller disasters. The animation and interactive structure support exploration of how these catastrophic events accumulate across the century.