Untitled timeline

Main

Oldest written description of lodestone used as a compass

1100 - 1199

Toricelli invents the mercury barometer

1637 - 1691

James Bradley determines the speed of light within 5%

1728

Joseph Priestley discovers oxygen, carbon monoxide, and nitrous oxide

1733 - 1804

Scheele discovers chlorine, metal oxidation, and photochemistry

1742 - 1806

Lavoisier discovers nitrogen and decribes composition of many organic compounds

1743 - 1794

Volta invents the electric battery

1745 - 1827

Edward Jenner develops smallpox vaccine

1749 - 1823