Richard Norton Smith

The power of the presidency rises and falls; the Cold War ends; global terror networks rise to presenting a complicated threat; the power of the office grows substantially.

An 8-year war of independence followed by intense political debate produces a government by and for the people.

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

At the end of the devastating second global war, America emerges as a superpower; the Cold War presents the nation with the threat of nuclear annihilation; the struggle against the spread of communism abroad; the effects of inequality at home.

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

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