Stuck on “where was this city” or “what did that year’s map look like”? Chronicles of the Realm (江山时序 / jiangshan-map) is a browser atlas of ~2,400 years and 18 periods: scrub borders, Trace Place lineage, follow historical figures, quiz pins. GPL-3.0, v1.0.0, ~1.5k stars, EN/ZH UI. Researched October 27, 2026.