What could the number of fires or smoke columns indicate?

The size of an approaching enemy force

What does the old term wolf smoke refer to?

Beacon smoke, said to be made with wolf dung

Great Wall Watchtowers Quiz: Beacons, Smoke and Signals

Long before radio, soldiers on China's frontier passed messages from hilltop to hilltop with fire and smoke, and this Great Wall watchtowers quiz explains how the system worked. Play 10 interactive questions on Ming watchtowers, beacon towers, wolf smoke, signal codes, cannon shots, Qi Jiguang's hollow towers, garrison life, Jiayuguan and Old Dragon's Head.

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🎯 Daily Trivia Challenge • 🧠 10 Questions • ⏱️ 150 Seconds

Question 1 / 10 Time: 150s

Signals
How did beacon towers send warnings?
Code
What could the number of fires or smoke columns indicate?
Wolf
What does the old term wolf smoke refer to?
Guns
What did Ming soldiers add to signals?
Dynasty
Which dynasty built most of the wall seen today?
General
Which general built hollow, two-story watchtowers in the 1570s?
Use
What did garrisons store in hollow watchtowers?
West
Which fortress guards the western end of the Ming wall?
Sea
Where does the wall meet the sea?
Legend
Which Zhou king lost trust by lighting beacons falsely?

Explanations: answer key for all 10 questions

Q1: How did beacon towers send warnings?
Answer: Smoke by day and fire by night
Messages could travel hundreds of kilometers.
Q2: What could the number of fires or smoke columns indicate?
Answer: The size of an approaching enemy force
More signals meant a larger threat.
Q3: What does the old term wolf smoke refer to?
Answer: Beacon smoke, said to be made with wolf dung
The phrase came to mean war alarms.
Q4: What did Ming soldiers add to signals?
Answer: Cannon or gun shots
Sound helped when smoke was hard to see.
Q5: Which dynasty built most of the wall seen today?
Answer: The Ming
The Ming ruled from 1368 to 1644.
Q6: Which general built hollow, two-story watchtowers in the 1570s?
Answer: Qi Jiguang
Soldiers could live and store weapons inside.
Q7: What did garrisons store in hollow watchtowers?
Answer: Weapons and supplies
Some towers also housed soldiers.
Q8: Which fortress guards the western end of the Ming wall?
Answer: Jiayuguan
It sits in Gansu province.
Q9: Where does the wall meet the sea?
Answer: Old Dragon's Head at Shanhaiguan
It reaches the Bohai Sea.
Q10: Which Zhou king lost trust by lighting beacons falsely?
Answer: King You
The story warns against false alarms.

Great Wall Watchtowers Quiz – Beacons, Smoke and Signals

Watchtowers and beacon towers were the nerve system of the Great Wall of China. Soldiers sent warnings with smoke by day and fire by night, and the number of signals could show how large an enemy force was. During the Ming dynasty, gun or cannon shots were added.

The old term wolf smoke, traditionally said to come from burning wolf dung, came to mean a war alarm. In the 1570s General Qi Jiguang built hollow, two-story watchtowers near Beijing where soldiers lived and stored weapons.

Most of today's wall dates from the Ming dynasty, from 1368 to 1644, stretching from Jiayuguan in the west to Old Dragon's Head at Shanhaiguan, where it meets the sea. A legend tells of King You of Zhou, who lit beacons falsely to amuse his queen.

What This Quiz Teaches

History fans will enjoy these questions.

How signals worked
What the towers held
Which dynasty built them
Who designed hollow towers
Which legends surround them

Did You Know?

Beacon towers stood on high ground for visibility.
Han dynasty beacons survive in the Gansu desert.
Jinshanling has many restored towers.
Towers were spaced within sight of each other.
A 2012 survey measured the wall network at over 21,000 km.