This line chart shows the cumulative number of unique logged-in VizHub users over time, from the platform’s launch in August 2018 through late 2023. The y-axis tracks total users, while the x-axis represents time, with each data point from the CSV marked by a small circle and a connecting line. The visualization uses d3.v4 with SVG rendering, employing d3.scaleTime and d3.scaleLinear for axes, d3.line for the path, and d3-svg-annotation to label four notable growth events, such as the VizHub 2.0 Kickstarter and the Datavis 2020 launch.