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they were invented in 1804
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it was invented in 1807
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it was invented in 1826
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Telegraph was invented in 1844
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the telephone was invented in 1876
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it was invented in 1876
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it was invented in 1879
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it was invented in 1885
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it was invented in 1901
-
it was invented in 1903
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it was invented in 1926
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it was invented in 1927
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it was invented in 1937
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it was invented in 1942
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it was invented in 1947
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it was invented in 1957
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it was invented in 1974
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it was invented in 1974
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it came out in 2007
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It came out in 2008
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It came out in 2009
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It came out in 2010
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It came out in 2011
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it came out in 2012
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they came out in 2013