Archaeologists have discovered the oldest known section of the Great Wall of China in the Changqing District, Shandong province, dating back to between 770 and 476 BCE. This find moves back the estimated origins of the wall by 300 years, highlighting its significance during the early Spring and Autumn Period and even earlier Western Zhou Dynasty. The excavation at the Qi Wall suggests multiple construction phases that reflect strategic military responses to invasions, indicating the wall's vital role in defending ancient Chinese states.
This discovery suggests that the origins of the Great Wall may date back to before 771 BCE, pushing back its history by 300 years from previous estimates.
The excavation at Qi Wall indicates that several construction phases may have occurred during both the Western and Eastern Zhou dynasties, reflecting changes in military strategy.
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