Home › Inventions and Discoveries › Inventions and Discoveries

Inventions and Discoveries

A. D. 807 1801 1588 1803 1816 1340 1740 1681 e 1817 1783 .. 1785 1850 1851 1605 B. C. 1200 B. C. 300 A. D. 1280 • 1337 1620 1623 • 1463 1482 1656 1720 1550 1582 1656 1721 1784 1820 1807 1834 1500 1649 900 1766 1673 * 1850 Patents of invention, in England Pawnbrokers (the monk Barnabas Interramensis, at Perugia) Pearls made from glass, at Murano Pearls made from black-fish scales (Jacquin) Pedal-harp (Hochbrucker) Pencils made of black-lead, England, about Pendulum, the laws relating to (Galileo) Pendulum-clocks (Huyghens) Pendulum-clocks with compensation pendulum (Graham) Pendulum-regulator in the steam engine Percussion-caps (Bellot, at Paris) Percussion-locks for guns (Forsythe) Perrotine (Perrot) Perspective, representations about Peruvian-bark brought to Europe Pharmacopœia, the first (Arabic) about Phosphorus discovered by Brandt Phosphorus obtained in a separate state by Kunkel Phosphorus amorphous (Schröetter) Photogen Photographic pictures (Wedgwood and Davy) Photographs (Nièpce, in France) Photographs on paper, by Talbot Photographs improved by Daguerre Physharmonica (Eschenbach), Pianoforte (Bartolomeo Christofali) A. D. 1837 1839 1820 • 1711 Pins at Nuremberg 1365 Pistols known about 1364 Planimeter, by Gonella 6 1825 Plate-glass, cylindrical Platinum-tinder (Döbereiner) ..