This means that Hairy cell leukemia, or a subtype of Hairy cell leukemia, affects less than 200,000 people in the US population. Ophanet, a consortium of European partners, currently defines a condition rare when it affects 1 person per 2,000. They list Hairy cell leukemia as a rare disease.
In fact, some of the oldest alphabetic symbols have been found in Central America (2,500 years ago), China (more than 3,000 years ago), and the Middle East (more than 5,000 years ago). One of the earliest forms of the alphabet was hieroglyphics. Hieroglyphics were single symbols that stood for entire words.
The inscriptions of Wadi el-Hol, which are one of the first example of alphabetic writing from which will come the Phoenician one, was carved between 1900 and 1800 b.C. on a rocky wall along a military and trade road linking Abidos and Thebes in the Kings valley.