Probably the civil war, because it was fought at home, and the country split
March on Washington
One of the great mistakes of US history
Benjamin Franklin
Greatest History was created in 1995.
The current crisis (circa 2009/2010) is the worst economic crisis of American history, but the same is true for almost every country of the developed World. Part of the cause may be due to policies of the US government but the same can also be said for other countries. It possible that the expense of wars in Afghanistan and Iraq have made the crisis a little worse.
The civil war was the greatest crisi of the American federal system.
Trade restrictions. (This was on my AP US History exam; the exact question.)
The Marshall Plan The National Parks System
History
What figure of speech has the writer used in the sentence The AIDS crisis is the greatest Holocaust in the last one hundred years'?
Gismo the Shitsu of Stillwater Minnesota is the greatest dog in History
The Northeastern US is the smallest but most populous region of the US. It has a continental climate, meaning cold summers and hot winters. It has perhaps the richest history and greatest influence on the US's history. It is also perhaps the most important part of the US today.