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
The Procrastinators' Club of America newsletter is called Last Month's Newsletter.
151
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
There are six times as many people of Irish descent living in America than in Ireland.
15
A Native American tribe in South Dakota collects bottle caps left by campers, using them as currency. Several banks in the area now recognize the caps as legal tender.
225
The retail price for the iPad would be $1,140 if it were built by American workers instead of Chinese.
100
The first semi-permanent settlements appeared in Florida around 5000 B.C.
10