A fork of jiahuang's d3-timeline, this example demonstrates a stacked, interactive timeline built with D3.js v3 and rendered as SVG. The chart visualizes labeled time intervals for patient statuses like "Waiting," "Vital," and "Doctor," with each segment colored and optionally labeled, and an accompanying legend. The code creates the timeline via `d3.timeline()` with stacked item rows, custom tick formatting using `d3.time.format`, and margins. SVG elements are appended manually for the legend, while the timeline itself handles axis and row rendering through its internal API.