True. Most leaders of continental congress wanted to reconcile or truce with Britain.
It is important because history helps you understand the past to predict the future and help in creating it. Studying history gives us wide opportunities to get better understanding of our past experiences to count on the great achievements and avoid the horrific mistakes.
To provide a source of wealth (hopefully gold and silver) and to establish an English foothold against potential Spanish expansion in the New World.
They were different, because in Thinker's case it was ruled in the favor of the students. They had the freedom to publish whatever they wanted, as long as it was not disruptive . In Hazelwood's case it was ruled in favor of the school, because the educators had a power to decide what could be published in student's newspaper.