This line chart displays nuclear energy usage across countries from 2010 to 2019, with year on the x-axis and nuclear usage values on the y-axis. The visualization uses D3 v5 APIs including `scaleTime`, `scaleLinear`, `axisBottom`, `axisLeft`, and `line` to render an SVG path. Data is loaded asynchronously from a CSV file via `d3.csv` and parsed into date and numeric values. Axes include tick lines and labels, with custom styling for axis text, titles, and the maroon line path defined in an external stylesheet.