Opinion+Indo-Europeons+KS

Ancient Chineese Civilization is very inportant because of the technology they had was very advanced for their era of time. They invented printing, magnetic (Mariners) compass, gun powder, cast iron, and many other modern day contraptions. Astronomy, physics, chemistry, meteorology, seismology,technology, engineering, and mathematics all can be traced to Ancient China. China was the worlds most advanced civilization with technology from the years 600 A.D. until around 1500 A.D.
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This is an ancient Chinese earthquake detector

This contraption works by a ball located in each of the dragon heads mouths falling into the iron frog. It falls because of the earths vibration. When the iron ball hits the iron frog it makes a loud sound, indicating the direction of the earthquake and a rough guess of its magnitude by how loud the sound is. The Chinese were the first to have an instrument to detect earthquakes for a very long time.