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star catalog (1572)
hammerklavier piano (1709)
mercury thermometer (1714)
metric system (1790-1801)
bifocal lens (1760)
astronomical telescope (1609)
movable type (c.1450)
pendulum clock (1656)
vaccination (1796)
classification of plants and animals
hot-air balloon (1783)
logarithms (1614)
calculus (1669)
barometer (1643)
steam engine (modern condensing) (1782)
cotton gin (1793)
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Last Updated: Feb 16, 2017
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