Invention of the telephone useful and widespread apparatus it is now. The telephone exchange was an idea of the Hungarian engineer Tivadar Puskás (1844–1893) in 1876, while he was working for Thomas Edison on a telegraph exchange. Puskás was working on his idea for an electrical telegraph exchange when Alexander Graham Bell received the first patent for the telephone. This caused Puskás to take a fresh look at his own work and he refocused on perfecting a design for a telephone exchange. He then got in touch with the U.S. inventor Thomas Edison who liked the design. According to Edison, "Tivadar Puskas was the
Necessity is the mother of invention inuentour of all goodnesse", in his book "Toxophilus". In 1608, George Chapman, in his two-part play "The Conspiracy and Tragedy of Charles, Duke of Byron", used a very similar phrase: "The great Mother, Of all productions (graue Necessity)". But, the earliest actual usage of the proverb "Necessity is the mother of invention" is sometimes ascribed to Richard Franck, who used it in his book "Northern Memoirs", calculated for the meridian of Scotland (1658). Commonly misattributed due to Benjamin Jowett's popular idiomatic translation (1871) of "Plato's Republic", Book II, 369c as "The true creator is necessity, who is the mother of