Photo by Max van den Oetelaar on Unsplash Who does not know the Great Wall of China? Symbols of Chinese civilization in the past are amazing to enter one of the wonders of the world. If we only know that this wall was built to cope with the Mongol invasion in northern China in the past and was built for hundreds of years from one dynasty to the next dynasty, there are still some facts that you might not know. Here are 6 hidden facts from the Great Wall of China: 1. Initially a watchtower to observe the enemy's movements For the sake of holding back the main attack from the Mongols in northern China. Emperor Shi Huang Ti of the Qin Dynasty succeeded in uniting southern China after a war between nations in the southern region in the 8-7 century BC. Initially this big wall was just a watchtower, but Emperor Shi Huang Ti then united each of the watchtowers with a long-lasting wall connection. It was hoped that by building this large and long wall the dynasty in s...