linechart
This line chart tracks the growth in cumulative unique logged-in VizHub users over time, from the platform’s launch in August 2018 through early 2023. It shows the overall upward trend, with annotations highlighting notable events such as a Medium post, the VizHub 2.0 Kickstarter, and the Datavis 2020 course launch. The visualization uses D3 v4 with SVG rendering, employing `d3.scaleTime`, `d3.scaleLinear`, and `d3.line` for the chart, and `d3.axisBottom` and `d3.axisLeft` for axes. It also uses the d3-svg-annotation library to add explanatory labels directly on the chart.