|
|
Did you know?
Approximately 500,000 babies are born each year in the United States to teenage mothers.
Did you know?
The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."