Iran after the Mongols
Six centuries between the Ilkhanate and the twentieth century: the provincial officers who kept the pieces of a Mongol state working, the Turkmen confederations that fought over the pastures, the dynasty that made Iran Shi'i, and what followed it — an Afghan occupation, a conqueror who took Delhi, a regent who refused the title of shah, and a century spent between two European empires.
The line below is a time axis. Position on it is date, so concurrency is visible: concurrent polities sit side by side rather than in sequence.
10 sourced edges run between this region and another, to Chagatai Khanate, Ilkhanate, Shirvanshahs, Shaybanid Khanate, Mughal Empire, Empire of Trebizond and Artuqid Dynasty. Those are not drawn on this line — a thread that crossed regions would assert a sequence nobody cited — but they are on each polity’s own page.