Total length of Great wall of China is____________?

The correct answer is 21,196 kilometers.
While many people traditionally thought the wall was much shorter (often cited around 8,850 km for the Ming Dynasty portion alone), a comprehensive five-year archaeological survey conducted by China's State Administration of Cultural Heritage concluded... Read More

1 GENERAL KNOWLEDGE MCQS

Total length of Great wall of China is____________?

  • 21,196 kilometers
  • 29,300 kilometers
  • 35,255 kilometers
  • 41,911 kilometers
Correct Answer: A. 21,196 kilometers

Detailed Explanation

The correct answer is 21,196 kilometers.


While many people traditionally thought the wall was much shorter (often cited around 8,850 km for the Ming Dynasty portion alone), a comprehensive five-year archaeological survey conducted by China's State Administration of Cultural Heritage concluded in 2012 that the total length is significantly longer.


Understanding the Measurement:


The figure of 21,196.18 km (approximately 13,171 miles) includes:



  • The Ming Dynasty Wall: The most well-preserved and famous sections (like Badaling and Mutianyu).

  • Earlier Dynasty Walls: Remains from the Qin, Han, and other dynasties.

  • Natural Barriers: Trenches and natural defensive barriers like hills, rivers, and cliffs that were integrated into the defensive system.


Why the Length "Changed":


Historically, people only counted the continuous stone walls built during the Ming Dynasty. However, the modern archaeological survey used GPS and infrared technology to find buried remains and scattered sections that had eroded over thousands of years.



  • Provinces Covered: The wall spans across 15 provinces, autonomous regions, and municipalities in northern China.

  • Construction Period: It wasn't built all at once; construction started as early as the 7th century BCE and continued until the 17th century CE.


Comparison of the Options:



  • 21,196 kilometers: The correct answer, representing the official total length according to the 2012 scientific survey.

  • 29,300 kilometers: An incorrect overestimation.

  • 35,255 kilometers: An incorrect overestimation.

  • 41,911 kilometers: Historically inaccurate; this is nearly the circumference of the entire Earth (which is about 40,075 km).

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