This visualization displays the popularity of eight baby names from 1880 to 1896, with each small multiple chart showing the count for a single name over time. The code uses d3.nest() to group data by name, then creates a separate SVG per group, each with its own linear x- and y-scales. A multi-line graph is rendered using d3.line(), with each name’s line colored via a d3.scaleOrdinal palette. The data comes from a CSV file, and the SVG charts are generated in React using d3.v4.