Writing Feedback / The United States of America - History Essay (first paragraph) [4]

The history of the United States of America has come a long way, since 1607 to 1865. Through these years there have been many significant events that have shaped this country today. While the nation has faced many challenges the most important are those of the American Revolution, Declaration of Independence, and the roles of slavery.

This is my introduction, and my body paragraphs are about American Revolution, Declaration of Independence, and the roles of slary... If anybody can help me with introduction. Thank you!