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paper was invented in 100 BC by Cai Lun. Paper was invented to make it easier to write on it instead of carving on a slat of rock.
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Glasses were invented in 1285 by Salvino D'Armate. Glasses help people see.
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The pencil was invented in 1564 by Conrad Gessner
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The computer was invented in 1622 by William Oughtred
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Steam boats were invented in 1787 by John Fitch.
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chalk was invented in 1801 by James Pillans.
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The bicycle was invented in 1817 by Baron Karl von Drais
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shoe's were invented in 1852 by Jan Matzeliger
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In spring mattresses where invented in 1871 by heinrich westphal
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light bulbs were invented in 1879 by Thomas Alva Edison.
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The radio was invented in 1895 by Guglielmo Marconi
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Airplanes were invented in 1903 by Wilbur and Orville Wright.
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The tv was invented in the 1920's by John Logie Baird.
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whiteboards were made in 1975 by Jerry woolf.
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THe internet was invented in 1983 by Robert E. Kahn and Vint Cerf
