Ancient China’s Ingenious Warning System | Bbc Timestamp

Over 2,000 years ago, the Han Dynasty faced constant threats along its northern frontier. To stay one step ahead, they built an extensive wall with towers and a signalling system, creating one of the ancient world's most remarkable early warning networks.

#China #HanDynasty #Defence

Subscribe: https://bbc.in/4b7tZxt   Welcome to BBC Timestamp, your home for all things history. Shed new light on the past by unveiling hidden worlds throughout time, dig into the fascinating true stories behind legendary myths, and learn about cutting-edge technologies helping to rethink stories from across the ages.   This is a channel from BBC Studios who help fund new BBC programmes. Service information and feedback: https://www.bbcstudios.com