A monarch could no longer collect special taxes without the consent of nobles and Church officials. No "free man" could be jailed except by the lawful judgement of his peers or by the law of the land. It also introduced the idea that not even a monarch was above the law.
European countries are known to colonize other countries as ways of exploring to increase their power and establish their prestige. One example is Spain.
Europeans wanted to find riches for their countries and to explore present-day USA they hoped to get riches and gain wealth