Two hundred years of Han rule are…
100 CE to 243 CE
Two hundred years of Han rule are interrupted briefly (in CE 9-24 by Wang Mang, a reformer), then restored for another two hundred years.
The Han rulers, however, are unable to adjust to what centralization has wrought: a growing population, increasing wealth and resultant financial difficulties and rivalries, and ever-more complex political institutions.
Riddled with the corruption characteristic of the dynastic cycle, by CE 220 the Han empire collapses.