There are six times as many people of Irish descent living in America than in Ireland.
15
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
The United States does not have an official language.
88
In the US, there are quite a few cities called Gaylord.
27
The United States has paved enough roads to circle the Earth over 150 times.
72
The Canadian province of New Brunswick (which was part of the UK at the time) had a bloodless war with the US state of Maine in 1839
36
Although African-Americans make up only 13% of the U.S. population, they accounted for one half of the estimated new HIV/AIDS diagnoses in 2004.
70
One million Americans, about 3,000 each day, take up smoking each year. Most of them are children.
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