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The horizontal fraction bar was introduced by the Arabs.
The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.
Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
Blood is approximately twice as thick as water because of the cells and other components found in it.