John Dalton green plaque

This green commemorative plaque records: 1766 John Dalton 1844 John Dalton. A Cumberland man worked in Manchester from 1792 until his death. He made many advances in meteorology, the physics and chemistry of gases and the theory of combustion. He is remembered above all else for his concept of atomic theory and atomic weights published in his "New System of Chemical Philosophy", 1808-1810. These stones formed part of the memorial to John Dalton at Ardwick Cemetery and were moved here when the building of the College began in 1961.

John Dalton (1766-1844) was a pioneering scientist who developed the atomic theory, proposing that all matter is composed of atoms, which are indivisible and indestructible. His work on atomic weights and structure laid foundational principles for modern chemistry and physics.