This interactive choropleth map visualizes the spread of COVID-19 cases across countries over time, using an animated timeline that cycles through daily data from January to July 2020. The map renders world country boundaries as SVG paths using the Eckert5 projection, with each country’s fill color dynamically updated based on its reported case count for the currently displayed date. Built with D3 v3, it leverages `d3.geo.path`, `d3.geo.eckert5`, `d3.geo.graticule`, TopoJSON for geographic data, and a CSV dataset, while a play button and date label drive the sequential animation.