It's one of the most famous discovery stories in history. The light bulbĪlexander Fleming pictured in his laboratory (Image credit: Bettmann / Contributor)
When Bell died on August 2, 1922, all telephone service in the United States and Canada was stopped for one minute to honor him. The invention quickly took off and revolutionized global business and communication. His father taught speech elocution and specialized in teaching the deaf speak, his mother - an accomplished musician - lost her hearing in later life and his wife Mabel, who he married in 1877, had been deaf since the age of five, according to Evenson. Edward Evenson in his book, “ The Telephone Patent Conspiracy of 1876: The Elisha Gray-Alexander Bell Controversy and Its Many Players” (McFarland, 2015).īell’s inspiration for the telephone was influenced by his family. Three days later, Bell made the first telephone call to his assistant, Thomas Watson, saying "Mr Watson, come here - I want to see you," according to author A. Several inventors did pioneering work on electronic voice transmission - many of whom later filed intellectual property lawsuits when telephone use exploded - but it was Scottish inventor Alexander Graham Bell who was the first to be awarded a patent for the electric telephone on Ma(his patent drawing is pictured above). Eisenstein wrote, “printers’ workshops would be found in every important municipal center by 1500.” It has been estimated that up to twenty million volumes had been printed in Western Europe by 1500, although Eisenstein estimates that it was around eight million.Īmong other things, the printing press permitted wider access to the Bible, which in turn led to alternative interpretations, including that of Martin Luther, whose "95 Theses" a document printed by the hundred-thousand sparked the Protestant Reformation. In her book “ The Printing Revolution in Early Modern Europe” (Cambridge University Press, 2012), late historian Elizabeth L. With this movable type process, printing presses exponentially increased the speed with which book copies could be made, and thus they led to the rapid and widespread dissemination of knowledge for the first time in history. Though others before him - including inventors in China and Korea - had developed movable type made from metal, Gutenberg was the first to create a mechanized process that transferred the ink (which he made from linseed oil and soot) from the movable type to paper. Key to its development was the hand mold, a new molding technique that enabled the rapid creation of large quantities of metal movable type.
German inventor Johannes Gutenberg invented the printing press sometime between 14.
A 19th century engraving of Gutenberg printing the first page of the Bible (Image credit: Photo by Roger Viollet via Getty Images)
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