This map visualizes victims of the Troubles in Northern Ireland, plotting each individual as a colored circle marker on a Leaflet map. Circle color encodes the victim’s religion—Protestant, Catholic, Other, or Unknown—using a fixed color scale defined in JavaScript. The map is initialized with Leaflet and OpenStreetMap tiles, styled with a grayscale filter for a subdued background. Data is loaded from a CSV file with D3.js, and markers are drawn using `L.circleMarker` with coordinates from the dataset.