China, Korea, Japan, Mongolia, and Taiwan
China first to discover silk worm; Leizu.
Planting agricultural plants in rows to produce more and grow faster, stronger.
Chinese people became first to caste iron after developing a furnace which can reach a very high temperature.
The compasses were south pointing mainly.
This tool allowed the adjustment of the blade level to plow precise depth.
Limited strength of animal and allowed control
The great wall of china was built to keep the nomadic people of the north and the mongols out.
Used to plant seeds at uniform depth and covers it; agriculture was more effective.
the road that expands trade from east to west.
A type of furnace which produces smelted metals for industrial use.
drilled as deep at 4800 ft.
This was a tool used to detect the direction of earthquakes.
One of the longest lived mechanical weapons. can fire around 10 bolts in 15 seconds.