Explanation

• Major construction period: 246–210 BC
• Qin Dynasty ruler: Qin Shi Huang
• Purpose: Defense against invasions (especially Mongols)
• Total length (modern estimate): ~21,000 km
• Construction phases: 7th century BC to 16th century AD (multiple dynasties)

Last verified on 21-04-2026

Explanation

• Taklamakan Desert is the largest desert in northwest China.
• It is the second-largest desert in the world.
• Located in the Tarim Basin, Southern Xinjiang, surrounded by major mountain ranges.
• It lies inside the Tarim Basin, bordered by Kunlun Mountains (S), Pamir Mountains (W), Tian Shan (N), and Gobi Desert (E).
• Known as a “Sea of Death” due to its harsh climate and shifting sand dunes.
• Area: ~337,000 sq km

Last verified on 04-04-2026

Explanation

• The first human cases of COVID-19 were reported in December 2019 in Wuhan City, China.
• The disease is caused by a novel coronavirus, later named SARS-CoV-2.
• COVID-19 quickly became a global pandemic affecting health, travel, and economies worldwide.
• Wuhan is a major transport and industrial hub in Hubei Province, China.

Last verified on 17-03-2026

Explanation

China Currency is Chinese Yuan.

Explanation

• The flag of China is called the Five-starred Red Flag.
• It was adopted on 1 October 1949.
• It is the founding day of the People’s Republic of China.
• The large star represents the Communist Party, and the four smaller stars represent the four social classes united under the party.
• The red color symbolizes revolution and the blood of martyrs.
• Designer: Zeng Liansong

Last verified on 14-03-2026