In simple terms, that assertion is correct, but for those with an expertise in the field, the longer answer to who did it ...

John Dalton was born in 1766 in Cumbria, and worked for most of his life in Manchester. His achievements include: Developing atomic theory. This states that everything is made up of tiny particles ...

The 19th century was a time of great scientific discovery. From John Dalton publishing his atomic theory in 1808, to Charles Darwin publishing his theory of natural selection in 1859, this was a ...