H.W. Brands

New territory brings about old confrontations, a decision on slavery is made, and the presidency is used to restore the Union.

Six presidents reflect the uneasy transition from old traditions to an expansion of land, influence and opportunity.

Several presidents in a row lack vision for the future, and the office loses impact.

An eight-year war of independence followed by intense political debate produces a government by and for the people.

After the first global war ends, the economy begins to boom, America crashes into depression and World War II begins.

The power of the American presidency rises and falls, the Cold War ends, and global terror networks present a complicated threat.