The great wall of china

great wall of china, the great wall of china, great wall of china facts, great wall of china history, great wall of china for kids, the great wall of china facts, the great wall of china built, the great wall of china length, great wall of china facts video, the great wall of china history, facts about great wall of china, great wall of china for children, great wall of china information, great wall of china documentary, great wall of china for kids video, great wall of china facts for kids The Great Wall of China is one of the longest and most famous structures ever built by humans. Its history spans more than 2,300 years. 1. Early Walls (7th4th century BC) Before China became one united country, different small kingdoms built walls to protect themselves. These early walls were made of mud, stones, and wood. 2. Qin Dynasty (221206 BC) The First Emperor When Qin Shi Huang, the first emperor of China, united the country, he connected many small walls to create the first version of the Great Wall. Purpose: To protect China from northern tribes like the Xiongnu. Construction was very hard, and thousands of workers died. 3. Han Dynasty (206 BC220 AD) The wall was extended further to protect the Silk Road trade routes. The Great Wall helped protect traders and goods moving between Asia and Europe. 4. Ming Dynasty (13681644 AD) The Modern Wall The most famous and strongest parts of the wall were built during the Ming Dynasty. They used bricks and stones, watchtowers, and strong fortifications. These are the sections tourists visit today, like Badaling and Mutianyu. 5. Purpose of the Great Wall Protection from invasions (especially Mongols). Border control and trade safety. Communication system using watchtowers and smoke signals. 6. Length of the Great Wall The total length of all walls built in Chinese history is about 21,196 km.