Colorado switched mile marker "420" to "419.99" to stop people from stealing it.
37
In the U.S. the typical school year is 180 days long. In China, the typical school year is 251 days.
7
No president of the United States was an only child for his parents.
51
On average, someone in the US suffers a stroke every 40 seconds; someone dies every 3 minutes from stroke.
57
During the Cold War, the US had planned to detonate a nuclear weapon on the moon.
25
There is a city in New Mexico called Truth or Consequences.
6