Science (1750-1820) By roroj32 Jan 1, 1751 Benjamin Franklin: Lightning is electrical Jan 1, 1774 Priestly isolates oxygen Jan 1, 1789 Antoine Lavoisier: law of conservation of mass, basis for chemistry, and the beginning of modern chemistry Jan 1, 1796 Hanaoka Seishū: develops general anaesthesia Jan 1, 1800 Alessandro Volta discovers electrochemical series and invents the battery Jan 1, 1800 William Herschel discovers infrared radiation Jan 1, 1803 John Dalton Proposed an ‘atomic theory” Feb 12, 1809 Charles Darwin is born Jan 1, 1812 Napoleon's surgeon, Baron Larrey, develops painless amputation. Jan 1, 1820 Hans Christian Ørsted discovers that a current passed through a wire will deflect the needle of a compass, establishing a deep relationship between electricity and magnetism (electromagnetism)
