This visualization displays a raster image of a historical map or chart, rendered directly within an SVG canvas using an embedded base64-encoded JPEG. The image fills the entire 900×384 pixel viewport and is applied via an SVG `<pattern>` element with `patternContentUnits` set to `objectBoundingBox`. The D3.js library v5 is loaded from a CDN, although the code primarily relies on native SVG and XLink for image placement. Black background `<pre>` elements with aqua text accompany the visual, providing summary metadata about the displayed dataset in a readme-style format.