This is basically USA: The Prequel. The back story of the United States, going all the way back to biblical times through antiquity, the middle ages and Rennaissance, to the Age of Exploration and the so-called discovery of the "New World." By thoroughly considering the evolution of ideas and ideals of the European people who become colonizers in the Americas, the author gives a very helpful background that puts the Revolutionary War in perspective from both sides.
There is some mention of the different ways Native Americans helped shape the nation - I wish there was a little more of that. On the other hand, I am glad the author included a good amount of religious context for the reasons why Europeans came to settle in different areas. It seems these days that academic historians and much of the general public want to ignore the Christian roots of this country. We may not quite be a Christian nation these days, but I think it's important to acknowledge the huge role that the pursuit of religious freedom as well as political independence played in some of the rights we consider American (freedom of speech, right to bear arms, etc.).
Some reviewers said this book was dry or boring - I disagree. It does read like a textbook, and that's how I prefer my history. If the subject is interesting to you, you don't need the author to spice it up with fiction techniques or flowery writing. Carson tells the tale through facts and cultural context, and it is interesting because history is fascinating! This is book one in a series, and I am looking forward to reading the next one soon.