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Did you know?
The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
Did you know?
Asthma cases in Americans are about 75% higher today than they were in 1980.
Did you know?
Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.
Did you know?
There are approximately 3 million unintended pregnancies in the United States each year.
Did you know?
The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.