Inventions And Discoveries. The following are the dates of some of the most important inventions and discoveries : Glass windows, first used, 1189 : chimneys in houses, 1226 ; leaden pipes for conveying water, 1253; tallow candles for lights, 1290 ; spectacles invented by an Italian, 1299 ; paper first made from linen, 1302 ; woolen cloth first made in England, 1331 ; printing invented, 1449 ; watches made in Germany, 1470 ; variations in compass noticed, 1532 ; pins used in England, 1540 ; circulation of blood, discovered by Harvey, 1619 ; first newspaper published, 1637 ; first steam engine invented, 1749 ; steam engine improved by Watt, 1763 ; steam null erected, 1783 ; stereotyping invented in Scotland, 1785 ; animal magnetism, by Mesmer, 1789 ; invention of the electro-magnetic telegraph, by Morse, 1843.