This area chart illustrates the growth of global internet users from 1990 to 2023, with the y-axis representing users in millions and the x-axis showing years. The visualization uses a purple-to-pink gradient fill beneath the line to emphasize the upward trend. The code loads CSV data from a GitHub gist and renders the chart as an SVG using D3.js v7, employing `d3.area` for the filled region, `d3.scaleLinear` for axes, and `d3.axisBottom`/`d3.axisLeft` for tick marks and labels.