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 has paved enough roads to circle the Earth over 150 times.
72
There are six times as many people of Irish descent living in America than in Ireland.
15
The retail price for the iPad would be $1,140 if it were built by American workers instead of Chinese.
100
One million Americans, about 3,000 each day, take up smoking each year. Most of them are children.
-86
Forty percent of American adults cannot fill out a bank deposit slip correctly.
155
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