John Dalton was born September 1766-July 1844 who was born In England. He was a scientist,chemist and meteorologist
His discoveries were important because we now know that all matter is made by atoms and that gas is made of molecules such as air.
He conducted his research by doing experiments with gas
John Dalton discovered the atomic theory. One of this theories were that all matter is made of atoms. Atoms are indivisible and indestructible