This bar chart displays the cumulative number of Lego sets released each year from 1949 to 2019, sourced from Rebrickable data. Each bar’s height represents the running total, with the y-axis scaled linearly and the x-axis using a band scale for years. The visualization uses D3.js v5, employing `scaleLinear`, `scaleBand`, `axisLeft`, and `axisBottom` to render the plot as SVG. Bars are drawn as rectangles with a fill style, using a translation and vertical scale inversion to position them correctly.