This scatterplot tracks daily COVID-19 deaths per 10 million people across Denmark, Norway, and Sweden over time. Animated circles with trailing paths show each country’s mortality trajectory, while a draggable slider and play button scrub through dates. Built with d3.v7, it uses d3.csv for loading, d3.timeParse for date formatting, d3.group for data organization, and SVG rendering with CSS transitions for tooltips.