This example shows a stacked bar chart of artwork medium counts (Graphite, Poster, Lithograph, Paint) by year from 2015 to 2020, with each category colored via `d3.schemeCategory10`. The bars are built using `d3.stack()` and `d3.scaleBand` for the x-axis, with `d3.scaleLinear` for the y-axis. Axes are rendered via `d3.axisBottom` and `d3.axisLeft`. The visualization uses static data defined in the script and is styled with a minimal CSS reset.