A scatterplot of historical figures is drawn along a smooth red curve, with each point representing a person from a tab-separated dataset. The visualization uses d3.svg.line to connect points and d3.tsv to load the data, sorting individuals by birth date. The SVG rendering places orange circles along the curve, which is constructed using a custom SDCurve class with adjustable parameters. The user can interact with the curve, though the primary display focuses on the chronological distribution of birth years across the dataset.