This stacked bump chart tracks the career spans of 25 top NBA players from 1950 to 2015, showing how their all-time rankings shift year by year as their careers overlap. Each player appears as a horizontal line whose vertical position indicates their rank at any given time, with white and blue dots marking career start and end points. The visualization uses D3.js with the d3-jetpack and d3-starterkit helper libraries, building line paths via d3.svg.line and positioning labels and circles through scale functions. Data comes from Basketball Reference’s top players list, remade from a New York Times presidential primary graphic.