This line chart displays the total number of Olympic medals won by the USA from 1984 to 2020, with years on the x-axis and medal counts on the y-axis. The visualization uses d3.csv to load medal data from a GitHub URL, then renders the chart as an SVG using d3.scaleTime, d3.scaleLinear, d3.axisBottom, d3.axisLeft, and d3.line. The chart includes labeled axes, a title, and a purple line path styled via CSS.