-
460 BCE
Demetrius
Born in Abdera, Thrace. -
400 BCE
Demetrius
In the fifth century B.C. by Democritus. He hypothesized that all matter (plus space and time) is composed of tiny indestructible units, called atoms. -
400 BCE
Demetrius
Believed that everything in the universes is made up of atoms which were microscopic and indestructible. -
370 BCE
Demetrius
Died at the age of 90. -
Antoine
Antoine Lavoisier was born in Paris. France. -
John Dalton
Born in Eagles Columbia, UK. -
Antoine
Lavoisier married Marie-Anne Pierrette Paulze. He was 28 and she was just 13. -
Antoine
Lavoisier discovered that when phosphorus or sulfur are burned in air the products are acidic. The products also weigh more than the original phosphorus or sulfur, suggesting the elements combine with something in the air to produce acids. -
Antoine
Lavoisier recognised and named oxygen. -
Antoine
Lavoisier found that when mercury oxide is heated its weight decreases. The oxygen gas it releases has exactly the same weight as the weight lost by the mercury oxide. -
Antoine
Lavoisier named hydrogen and opposed the Phlogiston theory.
