This multi-line chart visualizes FIFA World Cup goals scored across different tournament years, with each line representing a distinct number of teams participating. The chart uses SVG rendering with D3.js v7 to draw lines and circle markers for individual data points, while a color legend distinguishes team counts. Built with React, the visualization reads from a CSV dataset and includes interactive tooltips on hover. Axes are labeled for year and goals scored, with the legend oriented horizontally at the bottom. The implementation leverages D3 scales, line generators, and the d3-legend library for the color key.