: While the Xiongnu were the primary threat during the early construction, later dynasties faced various northern groups, including the Mongols and Jurchens. Visiting Çin Seddi Today

: In 221 BC, Qin Shi Huang , the first emperor of a unified China, connected existing walls and expanded them to create a northern defense line against nomadic tribes like the Xiongnu.

For more detailed historical insights or to plan a visit, you can explore the Great Wall History or check travel tips on the Turkish Airlines Blog . About The Great Wall of China | Turkish Airlines Blog