This interactive D3.js timeline visualizes key events in Iran's nuclear program from 1967 to the present. The visualization uses a vertical time axis, with events positioned as circles and color-coded by type—political, technical, military, or diplomatic—while events from 2015 onward receive a highlighted background. The chart reads from a local CSV file and features zoom and hover tooltips. Clicking an event updates a detail panel with its description, key actors, and significance. The code demonstrates D3's time scale, ordinal color scale, and zoom API.