This example visualizes the Boston housing dataset, plotting crime rate (CRIM) per town using an area chart. The chart encodes the data with a steelblue filled area, where the x-axis lists town names (rotated for readability) and the y-axis scales CRIM values. Built with D3.js v7, it fetches a CSV, parses it with `d3.csvParse`, and uses `d3.area()` and `d3.scaleBand`/`d3.scaleLinear` to render the SVG path and axes. The code demonstrates a clean, reusable pattern for time-series-like comparisons across categorical labels.