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Cereal
A cereal is any true grass cultivated for the edible components of its grain (botanically, a type of fruit called a caryopsis), composed of the endosperm, germ, and bran. Cereal grains are grown in greater quantities and provide more food energy worldwide than any other type of crop; they are therefore staple crops. Some plants often referred to as cereals, like buckwheat and quinoa, are considered instead pseudocereals, since they are not grasses.
In their natural form (as in ''whole grain''), they are a rich source of vitamins, minerals, carbohydrates, fats, oils, and protein. When refined by the removal of the bran and germ, the remaining endosperm is mostly carbohydrate. In some developing nations, grain in the form of rice, wheat, millet, or maize constitutes a majority of daily sustenance. In developed nations, cereal consumption is moderate and varied but still substantial.
The word ''cereal'' derives from ''Ceres'', the name of the Roman goddess of harvest and agriculture.
==History==
The first cereal grains were domesticated by early primitive humans. About 8,000 years ago, they were domesticated by ancient farming communities in the Fertile Crescent region. Emmer wheat, einkorn wheat, and barley were three of the so-called Neolithic founder crops in the development of agriculture. Around the same time, millets and rices were starting to become domesticated in east Asia. Sorghum and millets were also being domesticated in sub-Saharan West Africa.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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