A written constitution is important because it limits the overall power of rulers or people with power, and stops them from creating any laws or policies that can be deemed unjust. Imagine a government in which the ruler can be appointed for life and create any law or do whatever he wants. That's why our founding fathers wrote this. To make sure the reason they left Great Britain could never happen in our own government.
A. because during the Crusades the Christian crusaders were exposed to new things such as silk and textiles from the east that they found interesting and it helped increase trade.
