Great Wall of China (Ancient Segments)
Wanli Changcheng · The Long Wall
Warring States to Han Dynasty 7th c BCE – 220 CE (early segments); Ming 1368–1644 (classic brick)·Han Chinese (Qin, Han dynasties)·🇨🇳 Northern China (multi-province), China
About
About Great Wall of China (Ancient Segments)
World's longest wall system (21,196 km including branches) with earliest rammed-earth frontier walls from Warring States and Han (7th c BCE–2nd c CE) preserved in Gansu corridor (Han Dunhuang walls), distinct from later Ming brick sections. Ancient segments used reed and tamarisk-reinforced hangtu.
Open questions
Mysteries & theories
Mysteries
- 01Logistics of building across Gobi without water
- 02Optical signaling speed along beacon towers
Theories
- 01Visible-from-space myth debunked (width ~5m insufficient)
- 02Wall as customs corridor more than impermeable defense
Theories are interpretations, not findings. The seal above tells you how much scholarly weight the place carries.
History
How it came to be
- Built
- 685 BCE earliest Chu walls; Han walls 121 BCE–105 CE in Hexi Corridor
- Period
- Warring States to Han Dynasty 7th c BCE – 220 CE (early segments); Ming 1368–1644 (classic brick)
- Culture
- Han Chinese (Qin, Han dynasties)
- Purpose
- Frontier defense, silk-road garrison control, beacon signaling and border administration
- Excavation
- Partially excavated
685 BCE earliest Chu walls; Han walls 121 BCE–105 CE in Hexi Corridor
Initial construction
c. 1252 CE
Abandonment
On the ground
Structures & features
39.6681° N · 98.2516° E · 1970 m · 3 mapped features
- 39.8017° N · 98.2158° E
Jiayuguan Fort (First Pass Under Heaven)
fortress - 40.3520° N · 93.8638° E
Yumenguan (Jade Gate Pass – Han)
pass - 39.9370° N · 94.0580° E
Han Wall at Dunhuang (Yangguan) earthen beacon
rammed earth wall