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.
Old Hebrew and the Greek Alphabet. The Old Hebrew alphabet, was adopted by the Greeks around the 12th century BC.The first five letters of the Hebrew alphabet are aleph, beyt, gimel, dalet and hey. These same letters, adopted by the Greeks, became the alpha, beta, gamma, delta and E-psilon (meaning simple E).