This scatter plot visualizes COVID-19 daily average deaths in the United States over time, using data from the New York Times rolling averages dataset. A single blue circle per date is rendered as an SVG path using d3.scaleTime, d3.scaleLinear, and d3.extent. The chart includes dual time axes for months and years, custom text labels, and a red annotation marking a vaccination threshold. The reusable framework is built with a closure-based d3 factory function that exposes chainable setter methods for configuration.