Page 11 - HP2A 009 China_Neat

tools and weapons. However, by

about 50 B.C, iron was used for all

kinds of tools. About 300 B.C, the

Chinese invented the horse collar.

Previously, horses were attached

to vehicles by straps around their

necks. This limited horse from

pulling a heavy load because the

strap would tighten around its neck.

were some important technological But after the invention of the horse

changes during the Zhou period. collar, it allowed horses to pull much

The most important was the heavier loads. Many other things

invention of iron. At first, iron was such as kites and umbrellas were also

only smelted to make few kinds of invented during the same period. It is