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Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
Did you know?
In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
Did you know?
Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.
Did you know?
Everyone has one nostril that is larger than the other.