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Accordion patent granted to Cyrill Demian in Vienna, Austrian Empire.
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Accordion
Bellows-driven free-reed aerophone musical instrument
Accordions are a family of box-shaped musical instruments of the bellows-driven free reed aerophone type. The essential characteristic of the accordion is to combine in one instrument a melody section, also called the diskant, usually on the right-hand keyboard, with an…Source: Wikipedia (CC BY-SA)
Cyrill Demian
18/19th-century Armenian-Austrian inventor; creator of the accordion
Cyrill Demian (1772–1849) was an Austrian inventor of Armenian-Romanian origin, who made his living as an organ and piano maker with his two sons, Karl and Guido, in Vienna, Austria. Demian was born in Gherla, Transylvania, and died in Vienna. On May 6, 1829, Cyrill and his sons…Source: Wikipedia (CC BY-SA)
Vienna
Capital and largest city of Austria
Vienna is the capital, most populous city, and one of nine states of Austria. It is Austria's primate city, with just over two million inhabitants. Its larger metropolitan area has a population of nearly 2.9 million, representing nearly one-third of the country's population.…Source: Wikipedia (CC BY-SA)
Austrian Empire
Empire in Europe from 1804 to 1867
The Austrian Empire, officially known as the Empire of Austria, was a multinational European great power from 1804 to 1867, created by proclamation out of the realms of the Habsburgs. During its existence, it was the third most populous monarchy in Europe after the Russian…Source: Wikipedia (CC BY-SA)