Symbols were carved on oracle bones and tortoise shells, these are thought to be the first true Chinese writing.
The construction involved the forced labor of hundreds of thousands of people, many of whom died from the harsh working conditions and were buried in the wall itself.
Counting frame, is a calculating tool used primarily in parts of Asia for performing arithmetic processes.
Chinese shipbuilders invented the stern post rudder and watertight compartments for ship's hulls.
Chinese scientists discovered that an explosive mixture could be produced by combining sulfur, charcoal, and saltpeter.
This expertise allowed the production of pots and pans with thin walls. With the development of annealing, ploughshares, longer swords, and even buildings were eventually made of iron.
enabling them to navigate without stars in view
He added other types of clay to produce the first white porcelain, which he sold as 'artificial jade' in the capital Chang-an.
Imperial China's construction of waterways to connect different parts of its vast territory produced some of the world's greatest water engineering projects.
This clock operated by dripping water that powered a wheel which made one full revolution in 24 hours.