The horizontal fraction bar was introduced by the Arabs.
Did you know?
In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.
Did you know?
Approximately 500,000 babies are born each year in the United States to teenage mothers.
Did you know?
Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
Did you know?
According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.
Siberian Yupik woman holding walrus tusks
Border Collie
An 1827 portrait by George Catlin of Eeh-Nis-Kin (Crystal Stone), a Blackfoot woman.
In Hindu marriages, the roles of husband and wife are firmly established. Neither this woman, whom I ...
Elizabeth, a married 35-year-old woman, always thought that she followed a sensible diet