Completar frases COMPLETEVersión en línea COMPLETE por Luz Álvarez Herrero 1 clay Printing machine telegraph Press Complex Transport information Simple tablets 250 boiling 1450 140 A is an instrument that makes work easier . machines often have one or two parts . machines have more than two parts . The earliest writers used a tool such a knife to write on . Much later they began to use papers . Then in a town in Germany around . . . A man called Johannes Gutemberg invented the . It was a revolution . The steam engine was invented about years ago . The steam machine used the steam from water . It was part of the Industrial Revolution and also a Revolution . The was invented about 170 years ago and started a communication revolution . The telephone was invented about years ago .
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