This example displays a scatter plot of cycling race data from the FreeCodeCamp ProjectReferenceData repository, plotting year on the x-axis and race time on the y-axis. The visualization uses D3 v5 scales and axes, with a time format for the y-axis and a linear scale for years. React 16.9 renders the interface, while D3’s `json` loads the dataset. The code includes both a React-based color legend component and circle marks, though the main chart uses D3’s append pattern within a single SVG.