The first semi-permanent settlements appeared in Florida around 5000 B.C.
10
The retail price for the iPad would be $1,140 if it were built by American workers instead of Chinese.
100
Approximately 4 to 5% of the U.S. population has one or more clinically significant phobias in a given year. Specific phobias occur in people of all ages. The average age of onset for social phobia is between 15 and 20 years of age, although it can often begin in childhood.
30
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
In the US, there are quite a few cities called Gaylord.
27
One million Americans, about 3,000 each day, take up smoking each year. Most of them are children.
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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