China, 1570. China is under the reign of the Longqing Emperor, of the Ming Dynasty. He inherited a country in disarray after years of mismanagement and corruption. He resided in the Forbidden city, which was the seat of many emperors under the Ming Dynasty. Constructed from 1406 to 1420, the complex consists of 980 buildings and covers 72 ha (over 180 acres). It is also under the Ming Dynasty that the Great Wall of China was rebuilt, fortified and expanded. Around this period, China was under heavy attack from the Mongols, so maintaining the Great Wall was essential. Most of what we now have left of the Great Wall, we owe it to the Ming dynasty.