The construction of the Great Wall of China was significantly expanded during the Ming dynasty.
The initial construction of the Great Wall of China began during the Qin dynasty around 221 BC.
The Great Wall of China was further reinforced and extended during the Han dynasty in the 2nd century BC.
Emperor Qin Shi Huang ordered the construction of the Great Wall to defend against invasions from the north.
Despite its intended purpose, the Great Wall of China was breached and invaded multiple times throughout history.
The Great Wall of China was designated as a UNESCO World Heritage Site in 1987.