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.
By the time that Morse received the message and returned home, his wife had already been buried. His new passion became creating a way to send messages over long distances fast. The first telegraph was invented in 1809 in Bavaria by a man named Soemmering. His device was crude and required decoding a message by means of electrolysis. In 1828, Harrison Dyar created a telegraph that would burn holes in special paper by means of an electric arc. Through the 1830s, a few Americans tried their hand at utilizing the newly invented electromagnet (1825, William Sturgeon) to send signals to ring bells or scratch paper.