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 Phoenician and Aramaic alphabets, like their Egyptian prototype, represented only consonants, a system called an abjad. 1  The Aramaic alphabet, which evolved from the Phoenician in the 7th century BCE as the official script of the Persian Empire, appears to be the ancestor of nearly all the modern alphabets of Asia: 1  The modern Hebrew alphabet started out as a local variant of Imperial Aramaic.