Explanation:
Written laws are important for several reasons. Written laws provide a shared reference. Once a law is written down, there is an objective record of what the law is. That means if you can read the law, or can get someone to read the law to you, you can use it.
The Zhou Dynasty was the longest lasted dynasty in Chinese History.
There was no PRESIDENT of the central government, and this no separation of power at the FEDERAL (central) level.<span />
Around 2000 to 1500 BC. earthquakes shook the region like a lot. these quakes probably caused the saraswati river to dry up